156470215644 has 48 divisors (see below), whose sum is σ = 429526087200. Its totient is φ = 49088694528.

The previous prime is 156470215571. The next prime is 156470215669. The reversal of 156470215644 is 446512074651.

156470215644 is a `hidden beast` number, since 1 + 5 + 64 + 7 + 0 + 21 + 564 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 156470215644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42609879 + ... + 42613550.

It is an arithmetic number, because the mean of its divisors is an integer number (8948460150).

Almost surely, 2^156470215644 is an apocalyptic number.

It is an amenable number.

156470215644 is an abundant number, since it is smaller than the sum of its proper divisors (273055871556).

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

156470215644 is a wasteful number, since it uses less digits than its factorization.

156470215644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85223459 (or 85223451 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 156470215644 in words is "one hundred fifty-six billion, four hundred seventy million, two hundred fifteen thousand, six hundred forty-four".