66831190624 has 24 divisors (see below), whose sum is σ = 143535171528. Its totient is φ = 30377813760.

The previous prime is 66831190609. The next prime is 66831190627. The reversal of 66831190624 is 42609113866.

66831190624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66831190627) 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, 94930317 + ... + 94931020.

It is an arithmetic number, because the mean of its divisors is an integer number (5980632147).

Almost surely, 2^66831190624 is an apocalyptic number.

It is an amenable number.

66831190624 is an abundant number, since it is smaller than the sum of its proper divisors (76703980904).

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

66831190624 is a wasteful number, since it uses less digits than its factorization.

66831190624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189861358 (or 189861350 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 66831190624 in words is "sixty-six billion, eight hundred thirty-one million, one hundred ninety thousand, six hundred twenty-four".