120658660 has 24 divisors (see below), whose sum is σ = 253597176. Its totient is φ = 48222720.

The previous prime is 120658651. The next prime is 120658679. The reversal of 120658660 is 66856021.

It can be written as a sum of positive squares in 4 ways, for example, as 2849344 + 117809316 = 1688^2 + 10854^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 35850 + ... + 39070.

It is an arithmetic number, because the mean of its divisors is an integer number (10566549).

Almost surely, 2^120658660 is an apocalyptic number.

120658660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120658660 is an abundant number, since it is smaller than the sum of its proper divisors (132938516).

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

120658660 is a wasteful number, since it uses less digits than its factorization.

120658660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5103 (or 5101 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 120658660 is about 10984.4735877510. The cubic root of 120658660 is about 494.1432105677.

The spelling of 120658660 in words is "one hundred twenty million, six hundred fifty-eight thousand, six hundred sixty".