120650665 has 16 divisors (see below), whose sum is σ = 153763200. Its totient is φ = 90623232.

The previous prime is 120650639. The next prime is 120650671. The reversal of 120650665 is 566056021.

It is a cyclic number.

It is not a de Polignac number, because 120650665 - 2⁵ = 120650633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5116 + ... + 16354.

It is an arithmetic number, because the mean of its divisors is an integer number (9610200).

Almost surely, 2^120650665 is an apocalyptic number.

It is an amenable number.

120650665 is a deficient number, since it is larger than the sum of its proper divisors (33112535).

120650665 is a wasteful number, since it uses less digits than its factorization.

120650665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11376.

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

The square root of 120650665 is about 10984.1096589573. The cubic root of 120650665 is about 494.1322961357.

The spelling of 120650665 in words is "one hundred twenty million, six hundred fifty thousand, six hundred sixty-five".