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168650747740001 = 23672113445711621
BaseRepresentation
bin100110010110001100001111…
…111010001111111101100001
3211010010212001120202210200102
4212112030033322033331201
5134101133212410140001
61354405030043432145
750344420514625062
oct4626141772177541
9733125046683612
10168650747740001
11498124204241aa
1216ab978a225655
13731490ab9b6b7
142d90a4dc02569
151476ed649ce6b
hex99630fe8ff61

168650747740001 has 32 divisors (see below), whose sum is σ = 178750009122048. Its totient is φ = 158785865441280.

The previous prime is 168650747739937. The next prime is 168650747740039. The reversal of 168650747740001 is 100047747056861.

It is a cyclic number.

It is not a de Polignac number, because 168650747740001 - 26 = 168650747739937 is a prime.

It is a super-2 number, since 2×1686507477400012 (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168650747740061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14512578971 + ... + 14512590591.

It is an arithmetic number, because the mean of its divisors is an integer number (5585937785064).

Almost surely, 2168650747740001 is an apocalyptic number.

It is an amenable number.

168650747740001 is a deficient number, since it is larger than the sum of its proper divisors (10099261382047).

168650747740001 is a wasteful number, since it uses less digits than its factorization.

168650747740001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18281.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 168650747740001 in words is "one hundred sixty-eight trillion, six hundred fifty billion, seven hundred forty-seven million, seven hundred forty thousand, one".

Divisors: 1 23 67 1541 2113 4457 11621 48599 102511 141571 267283 298619 778607 3256133 6868237 9417641 17907961 24555173 51794797 216605743 564768979 630981947 1191280331 1645196591 3470251399 14512584781 37839521593 79815782177 109442406061 2517175339403 7332641206087 168650747740001