66185132 has 36 divisors (see below), whose sum is σ = 132045480. Its totient is φ = 28933632.

The previous prime is 66185101. The next prime is 66185143. The reversal of 66185132 is 23158166.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10268 + ... + 15420.

It is an arithmetic number, because the mean of its divisors is an integer number (3667930).

Almost surely, 2^66185132 is an apocalyptic number.

It is an amenable number.

66185132 is a deficient number, since it is larger than the sum of its proper divisors (65860348).

66185132 is a wasteful number, since it uses less digits than its factorization.

66185132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202 (or 5187 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 66185132 is about 8135.4245125869. The cubic root of 66185132 is about 404.5015093328.

The spelling of 66185132 in words is "sixty-six million, one hundred eighty-five thousand, one hundred thirty-two".