120491660 has 12 divisors (see below), whose sum is σ = 253032528. Its totient is φ = 48196656.

The previous prime is 120491639. The next prime is 120491689. The reversal of 120491660 is 66194021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3012272 + ... + 3012311.

It is an arithmetic number, because the mean of its divisors is an integer number (21086044).

Almost surely, 2^120491660 is an apocalyptic number.

120491660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120491660 is an abundant number, since it is smaller than the sum of its proper divisors (132540868).

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

120491660 is a wasteful number, since it uses less digits than its factorization.

120491660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6024592 (or 6024590 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 120491660 is about 10976.8693168863. The cubic root of 120491660 is about 493.9151290870.

The spelling of 120491660 in words is "one hundred twenty million, four hundred ninety-one thousand, six hundred sixty".