156679215139 has 18 divisors (see below), whose sum is σ = 167411993460. Its totient is φ = 146227916520.

The previous prime is 156679215137. The next prime is 156679215263. The reversal of 156679215139 is 931512976651.

It is not a de Polignac number, because 156679215139 - 2¹ = 156679215137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156679215139.

It is not an unprimeable number, because it can be changed into a prime (156679215137) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 122500702 + ... + 122501980.

Almost surely, 2^156679215139 is an apocalyptic number.

156679215139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

156679215139 is a deficient number, since it is larger than the sum of its proper divisors (10732778321).

156679215139 is an frugal number, since it uses more digits than its factorization.

156679215139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719 (or 1369 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 55.

The spelling of 156679215139 in words is "one hundred fifty-six billion, six hundred seventy-nine million, two hundred fifteen thousand, one hundred thirty-nine".