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161190383245760 = 2651129371371512063
BaseRepresentation
bin100100101001101000001111…
…100010001101100111000000
3210010201122112221210102110102
4210221220033202031213000
5132111420401102331020
61330453501221221532
745644422651003451
oct4451501742154700
9703648487712412
10161190383245760
11473a65041325a0
12160b39392618a8
136bc3259b182bb
142bb3928793128
151397de9b54475
hex929a0f88d9c0

161190383245760 has 896 divisors, whose sum is σ = 451308419850240. Its totient is φ = 54273687552000.

The previous prime is 161190383245747. The next prime is 161190383245777. The reversal of 161190383245760 is 67542383091161.

It is a super-2 number, since 2×1611903832457602 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161190383245696 and 161190383245705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 78133970489 + ... + 78133972551.

It is a 2-persistent number, because it is pandigital, and so is 2⋅161190383245760 = 322380766491520, but 3⋅161190383245760 = 483571149737280 is not.

Almost surely, 2161190383245760 is an apocalyptic number.

161190383245760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161190383245760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225654209925120).

161190383245760 is an abundant number, since it is smaller than the sum of its proper divisors (290118036604480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161190383245760 is a wasteful number, since it uses less digits than its factorization.

161190383245760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 161190383245760 in words is "one hundred sixty-one trillion, one hundred ninety billion, three hundred eighty-three million, two hundred forty-five thousand, seven hundred sixty".