156023563668 has 96 divisors (see below), whose sum is σ = 417431605248. Its totient is φ = 44431728000.

The previous prime is 156023563637. The next prime is 156023563691. The reversal of 156023563668 is 866365320651.

It is a super-2 number, since 2×156023563668² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 156023563668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68822671 + ... + 68824937.

It is an arithmetic number, because the mean of its divisors is an integer number (4348245888).

Almost surely, 2^156023563668 is an apocalyptic number.

It is an amenable number.

156023563668 is an abundant number, since it is smaller than the sum of its proper divisors (261408041580).

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

156023563668 is a wasteful number, since it uses less digits than its factorization.

156023563668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613 (or 4611 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 156023563668 in words is "one hundred fifty-six billion, twenty-three million, five hundred sixty-three thousand, six hundred sixty-eight".