66242912 has 12 divisors (see below), whose sum is σ = 130415796. Its totient is φ = 33121440.

The previous prime is 66242893. The next prime is 66242927. The reversal of 66242912 is 21924266.

66242912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2070091 = 66242912 / (6 + 6 + 2 + 4 + 2 + 9 + 1 + 2).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1035014 + ... + 1035077.

It is an arithmetic number, because the mean of its divisors is an integer number (10867983).

Almost surely, 2^66242912 is an apocalyptic number.

It is an amenable number.

66242912 is a deficient number, since it is larger than the sum of its proper divisors (64172884).

66242912 is a wasteful number, since it uses less digits than its factorization.

66242912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070101 (or 2070093 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 66242912 is about 8138.9748740244. The cubic root of 66242912 is about 404.6191858083.

The spelling of 66242912 in words is "sixty-six million, two hundred forty-two thousand, nine hundred twelve".