120056665 has 16 divisors (see below), whose sum is σ = 155520000. Its totient is φ = 88699072.

The previous prime is 120056647. The next prime is 120056683. The reversal of 120056665 is 566650021.

It is an interprime number because it is at equal distance from previous prime (120056647) and next prime (120056683).

It is a cyclic number.

It is not a de Polignac number, because 120056665 - 2¹⁷ = 119925593 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14665 + ... + 21334.

It is an arithmetic number, because the mean of its divisors is an integer number (9720000).

Almost surely, 2^120056665 is an apocalyptic number.

It is an amenable number.

120056665 is a deficient number, since it is larger than the sum of its proper divisors (35463335).

120056665 is a wasteful number, since it uses less digits than its factorization.

120056665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36056.

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

The square root of 120056665 is about 10957.0372364066. The cubic root of 120056665 is about 493.3200403751.

The spelling of 120056665 in words is "one hundred twenty million, fifty-six thousand, six hundred sixty-five".