76666020204 has 12 divisors (see below), whose sum is σ = 178887380504. Its totient is φ = 25555340064.

The previous prime is 76666020203. The next prime is 76666020209. The reversal of 76666020204 is 40202066667.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (76666020203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3194417497 + ... + 3194417520.

Almost surely, 2^76666020204 is an apocalyptic number.

It is an amenable number.

76666020204 is an abundant number, since it is smaller than the sum of its proper divisors (102221360300).

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

76666020204 is a wasteful number, since it uses less digits than its factorization.

76666020204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6388835024 (or 6388835022 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 76666020204 in words is "seventy-six billion, six hundred sixty-six million, twenty thousand, two hundred four".