666058525400 has 48 divisors (see below), whose sum is σ = 1548649641240. Its totient is φ = 266412473600.

The previous prime is 666058525399. The next prime is 666058525427. The reversal of 666058525400 is 4525850666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6291707 + ... + 6396693.

Almost surely, 2^666058525400 is an apocalyptic number.

It is an amenable number.

666058525400 is an abundant number, since it is smaller than the sum of its proper divisors (882591115840).

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

666058525400 is a wasteful number, since it uses less digits than its factorization.

666058525400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136724 (or 136715 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 666058525400 in words is "six hundred sixty-six billion, fifty-eight million, five hundred twenty-five thousand, four hundred".