156640131054 has 48 divisors (see below), whose sum is σ = 370370257920. Its totient is φ = 47450046480.

The previous prime is 156640131047. The next prime is 156640131071. The reversal of 156640131054 is 450131046651.

156640131054 is a `hidden beast` number, since 1 + 5 + 6 + 640 + 1 + 3 + 1 + 0 + 5 + 4 = 666.

156640131054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156640131054² (a number of 23 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 23 ways as a sum of consecutive naturals, for example, 432649 + ... + 707435.

It is an arithmetic number, because the mean of its divisors is an integer number (7716047040).

Almost surely, 2^156640131054 is an apocalyptic number.

156640131054 is an abundant number, since it is smaller than the sum of its proper divisors (213730126866).

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

156640131054 is a wasteful number, since it uses less digits than its factorization.

156640131054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277685 (or 277682 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 156640131054 in words is "one hundred fifty-six billion, six hundred forty million, one hundred thirty-one thousand, fifty-four".