156439371044 has 108 divisors (see below), whose sum is σ = 318074883840. Its totient is φ = 67202704800.

The previous prime is 156439371041. The next prime is 156439371139. The reversal of 156439371044 is 440173934651.

It is a self number, because there is not a number n which added to its sum of digits gives 156439371044.

It is not an unprimeable number, because it can be changed into a prime (156439371041) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27739577 + ... + 27745215.

Almost surely, 2^156439371044 is an apocalyptic number.

It is an amenable number.

156439371044 is an abundant number, since it is smaller than the sum of its proper divisors (161635512796).

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

156439371044 is a wasteful number, since it uses less digits than its factorization.

156439371044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782 (or 5726 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 156439371044 in words is "one hundred fifty-six billion, four hundred thirty-nine million, three hundred seventy-one thousand, forty-four".