665056113 has 8 divisors (see below), whose sum is σ = 915346176. Its totient is φ = 429068400.

The previous prime is 665056097. The next prime is 665056127. The reversal of 665056113 is 311650566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 665056113 - 2⁴ = 665056097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (665056193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3575478 + ... + 3575663.

It is an arithmetic number, because the mean of its divisors is an integer number (114418272).

Almost surely, 2^665056113 is an apocalyptic number.

It is an amenable number.

665056113 is a deficient number, since it is larger than the sum of its proper divisors (250290063).

665056113 is a wasteful number, since it uses less digits than its factorization.

665056113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151175.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 665056113 is about 25788.6818779092. The cubic root of 665056113 is about 872.8764233731.

The spelling of 665056113 in words is "six hundred sixty-five million, fifty-six thousand, one hundred thirteen".