665102004 has 24 divisors (see below), whose sum is σ = 1773605568. Its totient is φ = 190029120.

The previous prime is 665101981. The next prime is 665102023. The reversal of 665102004 is 400201566.

665102004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3958857 + ... + 3959024.

It is an arithmetic number, because the mean of its divisors is an integer number (73900232).

Almost surely, 2^665102004 is an apocalyptic number.

It is an amenable number.

665102004 is an abundant number, since it is smaller than the sum of its proper divisors (1108503564).

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

665102004 is a wasteful number, since it uses less digits than its factorization.

665102004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7917895 (or 7917893 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 665102004 is about 25789.5716133479. The cubic root of 665102004 is about 872.8965000001.

The spelling of 665102004 in words is "six hundred sixty-five million, one hundred two thousand, four".