668265750804 has 48 divisors (see below), whose sum is σ = 1578575996928. Its totient is φ = 220001354208.

The previous prime is 668265750787. The next prime is 668265750821. The reversal of 668265750804 is 408057562866.

668265750804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (668265750787) and next prime (668265750821).

It is a super-2 number, since 2×668265750804² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 3068989 + ... + 3279515.

It is an arithmetic number, because the mean of its divisors is an integer number (32886999936).

Almost surely, 2^668265750804 is an apocalyptic number.

It is an amenable number.

668265750804 is an abundant number, since it is smaller than the sum of its proper divisors (910310246124).

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

668265750804 is a wasteful number, since it uses less digits than its factorization.

668265750804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213804 (or 213802 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 57.

The spelling of 668265750804 in words is "six hundred sixty-eight billion, two hundred sixty-five million, seven hundred fifty thousand, eight hundred four".