136656560 has 20 divisors (see below), whose sum is σ = 317726688. Its totient is φ = 54662592.

The previous prime is 136656551. The next prime is 136656643. The reversal of 136656560 is 65656631.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854024 + ... + 854183.

Almost surely, 2^136656560 is an apocalyptic number.

136656560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136656560 is an abundant number, since it is smaller than the sum of its proper divisors (181070128).

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

136656560 is a wasteful number, since it uses less digits than its factorization.

136656560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708220 (or 1708214 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 136656560 is about 11690.0196749193. The cubic root of 136656560 is about 515.0825393204.

The spelling of 136656560 in words is "one hundred thirty-six million, six hundred fifty-six thousand, five hundred sixty".