156380453882442 has 12 divisors (see below), whose sum is σ = 338824316745330. Its totient is φ = 52126817960808.

The previous prime is 156380453882371. The next prime is 156380453882461. The reversal of 156380453882442 is 244288354083651.

156380453882442 is a `hidden beast` number, since 1 + 5 + 6 + 3 + 8 + 0 + 4 + 5 + 388 + 244 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 121267469646801 + 35112984235641 = 11012151^2 + 5925621^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 156380453882442.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4343901496717 + ... + 4343901496752.

Almost surely, 2^{156380453882442} is an apocalyptic number.

156380453882442 is an abundant number, since it is smaller than the sum of its proper divisors (182443862862888).

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

156380453882442 is a wasteful number, since it uses less digits than its factorization.

156380453882442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8687802993477 (or 8687802993474 counting only the distinct ones).

The product of its (nonzero) digits is 176947200, while the sum is 63.

The spelling of 156380453882442 in words is "one hundred fifty-six trillion, three hundred eighty billion, four hundred fifty-three million, eight hundred eighty-two thousand, four hundred forty-two".