156929512252 has 6 divisors (see below), whose sum is σ = 274626646448. Its totient is φ = 78464756124.

The previous prime is 156929512189. The next prime is 156929512303. The reversal of 156929512252 is 252215929651.

It is a happy number.

It is a super-2 number, since 2×156929512252² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156929512196 and 156929512205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19616189028 + ... + 19616189035.

Almost surely, 2^156929512252 is an apocalyptic number.

It is an amenable number.

156929512252 is a deficient number, since it is larger than the sum of its proper divisors (117697134196).

156929512252 is a wasteful number, since it uses less digits than its factorization.

156929512252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39232378067 (or 39232378065 counting only the distinct ones).

The product of its digits is 972000, while the sum is 49.

The spelling of 156929512252 in words is "one hundred fifty-six billion, nine hundred twenty-nine million, five hundred twelve thousand, two hundred fifty-two".