665130574 has 16 divisors (see below), whose sum is σ = 1039961808. Its totient is φ = 318745152.

The previous prime is 665130563. The next prime is 665130581. The reversal of 665130574 is 475031566.

665130574 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62119 + ... + 72034.

It is an arithmetic number, because the mean of its divisors is an integer number (64997613).

Almost surely, 2^665130574 is an apocalyptic number.

665130574 is a deficient number, since it is larger than the sum of its proper divisors (374831234).

665130574 is a wasteful number, since it uses less digits than its factorization.

665130574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134259.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 665130574 is about 25790.1255134596. The cubic root of 665130574 is about 872.9089984819.

The spelling of 665130574 in words is "six hundred sixty-five million, one hundred thirty thousand, five hundred seventy-four".