6666608657200 has 30 divisors (see below), whose sum is σ = 16016527299884. Its totient is φ = 2666643462720.

The previous prime is 6666608657119. The next prime is 6666608657221. The reversal of 6666608657200 is 27568066666.

It is a super-2 number, since 2×6666608657200² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8333260422 + ... + 8333261221.

Almost surely, 2^{6666608657200} is an apocalyptic number.

It is an amenable number.

6666608657200 is an abundant number, since it is smaller than the sum of its proper divisors (9349918642684).

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

6666608657200 is a wasteful number, since it uses less digits than its factorization.

6666608657200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16666521661 (or 16666521650 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 58.

The spelling of 6666608657200 in words is "six trillion, six hundred sixty-six billion, six hundred eight million, six hundred fifty-seven thousand, two hundred".