156676135980 has 384 divisors, whose sum is σ = 570011904000. Its totient is φ = 31225430016.

The previous prime is 156676135969. The next prime is 156676136017. The reversal of 156676135980 is 89531676651.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 156676135980.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 38692996 + ... + 38697044.

It is an arithmetic number, because the mean of its divisors is an integer number (1484406000).

Almost surely, 2^156676135980 is an apocalyptic number.

156676135980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156676135980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285005952000).

156676135980 is an abundant number, since it is smaller than the sum of its proper divisors (413335768020).

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

156676135980 is a wasteful number, since it uses less digits than its factorization.

156676135980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473 (or 4471 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 156676135980 in words is "one hundred fifty-six billion, six hundred seventy-six million, one hundred thirty-five thousand, nine hundred eighty".