156504063861 has 12 divisors (see below), whose sum is σ = 227415088992. Its totient is φ = 103711274856.

The previous prime is 156504063827. The next prime is 156504063913. The reversal of 156504063861 is 168360405651.

156504063861 is a `hidden beast` number, since 1 + 5 + 6 + 5 + 0 + 4 + 0 + 638 + 6 + 1 = 666.

It is not a de Polignac number, because 156504063861 - 2⁷ = 156504063733 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156504063061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52062391 + ... + 52065396.

It is an arithmetic number, because the mean of its divisors is an integer number (18951257416).

Almost surely, 2^156504063861 is an apocalyptic number.

It is an amenable number.

156504063861 is a deficient number, since it is larger than the sum of its proper divisors (70911025131).

156504063861 is a wasteful number, since it uses less digits than its factorization.

156504063861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104127960 (or 104127957 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 156504063861 in words is "one hundred fifty-six billion, five hundred four million, sixty-three thousand, eight hundred sixty-one".