66604615112 has 64 divisors (see below), whose sum is σ = 151188923520. Its totient is φ = 26853424128.

The previous prime is 66604615109. The next prime is 66604615117. The reversal of 66604615112 is 21151640666.

It is a happy number.

66604615112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66604615117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2229023 + ... + 2258705.

It is an arithmetic number, because the mean of its divisors is an integer number (2362326930).

Almost surely, 2^66604615112 is an apocalyptic number.

It is an amenable number.

66604615112 is an abundant number, since it is smaller than the sum of its proper divisors (84584308408).

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

66604615112 is a wasteful number, since it uses less digits than its factorization.

66604615112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32070 (or 32066 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 66604615112 in words is "sixty-six billion, six hundred four million, six hundred fifteen thousand, one hundred twelve".