120646560 has 48 divisors (see below), whose sum is σ = 380038176. Its totient is φ = 32172288.

The previous prime is 120646553. The next prime is 120646573. The reversal of 120646560 is 65646021.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125194 + ... + 126153.

It is an arithmetic number, because the mean of its divisors is an integer number (7917462).

Almost surely, 2^120646560 is an apocalyptic number.

120646560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120646560 is an abundant number, since it is smaller than the sum of its proper divisors (259391616).

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

120646560 is a wasteful number, since it uses less digits than its factorization.

120646560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251365 (or 251357 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 120646560 is about 10983.9227965240. The cubic root of 120646560 is about 494.1266919780.

The spelling of 120646560 in words is "one hundred twenty million, six hundred forty-six thousand, five hundred sixty".