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1640152775004 = 223136679397917
BaseRepresentation
bin10111110111100000101…
…110010011100101011100
312210210112001210210101020
4113313200232103211130
5203333013102300004
63253250434044140
7226332341363022
oct27674056234534
95723461723336
101640152775004
11582648534667
12225a57a19650
13bb8868395c3
14595532a6712
152c9e66e78d9
hex17de0b9395c

1640152775004 has 12 divisors (see below), whose sum is σ = 3827023141704. Its totient is φ = 546717591664.

The previous prime is 1640152774987. The next prime is 1640152775011. The reversal of 1640152775004 is 4005772510461.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×16401527750042 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68339698947 + ... + 68339698970.

It is an arithmetic number, because the mean of its divisors is an integer number (318918595142).

Almost surely, 21640152775004 is an apocalyptic number.

It is an amenable number.

1640152775004 is an abundant number, since it is smaller than the sum of its proper divisors (2186870366700).

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

1640152775004 is a wasteful number, since it uses less digits than its factorization.

1640152775004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136679397924 (or 136679397922 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 1640152775004 in words is "one trillion, six hundred forty billion, one hundred fifty-two million, seven hundred seventy-five thousand, four".

Divisors: 1 2 3 4 6 12 136679397917 273358795834 410038193751 546717591668 820076387502 1640152775004