156869960 has 32 divisors (see below), whose sum is σ = 380109240. Its totient is φ = 57921024.

The previous prime is 156869941. The next prime is 156869971. The reversal of 156869960 is 69968651.

It can be written as a sum of positive squares in 4 ways, for example, as 140043556 + 16826404 = 11834^2 + 4102^2 .

It is a junction number, because it is equal to n+sod(n) for n = 156869899 and 156869908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150317 + ... + 151356.

Almost surely, 2^156869960 is an apocalyptic number.

156869960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156869960 is an abundant number, since it is smaller than the sum of its proper divisors (223239280).

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

156869960 is a wasteful number, since it uses less digits than its factorization.

156869960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301697 (or 301693 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 156869960 is about 12524.7738502537. The cubic root of 156869960 is about 539.3200862097.

The spelling of 156869960 in words is "one hundred fifty-six million, eight hundred sixty-nine thousand, nine hundred sixty".