156969664 has 28 divisors (see below), whose sum is σ = 325032624. Its totient is φ = 75071744.

The previous prime is 156969661. The next prime is 156969667. The reversal of 156969664 is 466969651.

It is an interprime number because it is at equal distance from previous prime (156969661) and next prime (156969667).

It is not an unprimeable number, because it can be changed into a prime (156969661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51847 + ... + 54790.

It is an arithmetic number, because the mean of its divisors is an integer number (11608308).

Almost surely, 2^156969664 is an apocalyptic number.

It is an amenable number.

156969664 is an abundant number, since it is smaller than the sum of its proper divisors (168062960).

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

156969664 is a wasteful number, since it uses less digits than its factorization.

156969664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106672 (or 106662 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 52.

The square root of 156969664 is about 12528.7534894737. The cubic root of 156969664 is about 539.4343230413.

The spelling of 156969664 in words is "one hundred fifty-six million, nine hundred sixty-nine thousand, six hundred sixty-four".