3966657065388 has 24 divisors (see below), whose sum is σ = 10283925725360. Its totient is φ = 1322219021760.

The previous prime is 3966657065377. The next prime is 3966657065389. The reversal of 3966657065388 is 8835607566693.

It is not an unprimeable number, because it can be changed into a prime (3966657065389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18364152973 + ... + 18364153188.

Almost surely, 2^{3966657065388} is an apocalyptic number.

It is an amenable number.

3966657065388 is an abundant number, since it is smaller than the sum of its proper divisors (6317268659972).

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

3966657065388 is a wasteful number, since it uses less digits than its factorization.

3966657065388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36728306174 (or 36728306166 counting only the distinct ones).

The product of its (nonzero) digits is 1175731200, while the sum is 72.

The spelling of 3966657065388 in words is "three trillion, nine hundred sixty-six billion, six hundred fifty-seven million, sixty-five thousand, three hundred eighty-eight".