156899194056 has 384 divisors, whose sum is σ = 481844039040. Its totient is φ = 45718732800.

The previous prime is 156899194037. The next prime is 156899194091. The reversal of 156899194056 is 650491998651.

156899194056 is a `hidden beast` number, since 1 + 568 + 9 + 9 + 19 + 4 + 0 + 56 = 666.

156899194056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156899194056² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156899193984 and 156899194002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 812949096 + ... + 812949288.

It is an arithmetic number, because the mean of its divisors is an integer number (1254802185).

Almost surely, 2^156899194056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156899194056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240922019520).

156899194056 is an abundant number, since it is smaller than the sum of its proper divisors (324944844984).

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

156899194056 is a wasteful number, since it uses less digits than its factorization.

156899194056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 156899194056 in words is "one hundred fifty-six billion, eight hundred ninety-nine million, one hundred ninety-four thousand, fifty-six".