120656560 has 20 divisors (see below), whose sum is σ = 280526688. Its totient is φ = 48262592.

The previous prime is 120656537. The next prime is 120656573. The reversal of 120656560 is 65656021.

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

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, 754024 + ... + 754183.

Almost surely, 2^120656560 is an apocalyptic number.

120656560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120656560 is an abundant number, since it is smaller than the sum of its proper divisors (159870128).

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

120656560 is a wasteful number, since it uses less digits than its factorization.

120656560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508220 (or 1508214 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 120656560 is about 10984.3779978659. The cubic root of 120656560 is about 494.1403437843.

The spelling of 120656560 in words is "one hundred twenty million, six hundred fifty-six thousand, five hundred sixty".