66332512 has 24 divisors (see below), whose sum is σ = 135097200. Its totient is φ = 32022144.

The previous prime is 66332507. The next prime is 66332533. The reversal of 66332512 is 21523366.

66332512 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 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, 34812 + ... + 36667.

It is an arithmetic number, because the mean of its divisors is an integer number (5629050).

Almost surely, 2^66332512 is an apocalyptic number.

It is an amenable number.

66332512 is an abundant number, since it is smaller than the sum of its proper divisors (68764688).

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

66332512 is a wasteful number, since it uses less digits than its factorization.

66332512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71518 (or 71510 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 66332512 is about 8144.4773926876. The cubic root of 66332512 is about 404.8015325912.

Adding to 66332512 its reverse (21523366), we get a palindrome (87855878).

The spelling of 66332512 in words is "sixty-six million, three hundred thirty-two thousand, five hundred twelve".