66132554 has 4 divisors (see below), whose sum is σ = 99198834. Its totient is φ = 33066276.

The previous prime is 66132541. The next prime is 66132617. The reversal of 66132554 is 45523166.

66132554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58140625 + 7991929 = 7625^2 + 2827^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66132554.

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, 16533137 + ... + 16533140.

Almost surely, 2^66132554 is an apocalyptic number.

66132554 is a deficient number, since it is larger than the sum of its proper divisors (33066280).

66132554 is a wasteful number, since it uses less digits than its factorization.

66132554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33066279.

The product of its digits is 21600, while the sum is 32.

The square root of 66132554 is about 8132.1924473047. The cubic root of 66132554 is about 404.3943678747.

The spelling of 66132554 in words is "sixty-six million, one hundred thirty-two thousand, five hundred fifty-four".