66132568 has 8 divisors (see below), whose sum is σ = 123998580. Its totient is φ = 33066280.

The previous prime is 66132541. The next prime is 66132617. The reversal of 66132568 is 86523166.

66132568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 4133278 + ... + 4133293.

Almost surely, 2^66132568 is an apocalyptic number.

It is an amenable number.

66132568 is a deficient number, since it is larger than the sum of its proper divisors (57866012).

66132568 is a wasteful number, since it uses less digits than its factorization.

66132568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8266577 (or 8266573 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 66132568 is about 8132.1933080812. The cubic root of 66132568 is about 404.3943964110.

The spelling of 66132568 in words is "sixty-six million, one hundred thirty-two thousand, five hundred sixty-eight".