66122912 has 24 divisors (see below), whose sum is σ = 130477536. Its totient is φ = 32985792.

The previous prime is 66122909. The next prime is 66122933. The reversal of 66122912 is 21922166.

It is a happy number.

66122912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13463 + ... + 17705.

It is an arithmetic number, because the mean of its divisors is an integer number (5436564).

Almost surely, 2^66122912 is an apocalyptic number.

It is an amenable number.

66122912 is a deficient number, since it is larger than the sum of its proper divisors (64354624).

66122912 is a wasteful number, since it uses less digits than its factorization.

66122912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740 (or 4732 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 66122912 is about 8131.5995966353. The cubic root of 66122912 is about 404.3747136108.

The spelling of 66122912 in words is "sixty-six million, one hundred twenty-two thousand, nine hundred twelve".