66132204 has 12 divisors (see below), whose sum is σ = 154308504. Its totient is φ = 22044064.

The previous prime is 66132203. The next prime is 66132239. The reversal of 66132204 is 40223166.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (66132203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2755497 + ... + 2755520.

It is an arithmetic number, because the mean of its divisors is an integer number (12859042).

Almost surely, 2^66132204 is an apocalyptic number.

It is an amenable number.

66132204 is an abundant number, since it is smaller than the sum of its proper divisors (88176300).

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

66132204 is a wasteful number, since it uses less digits than its factorization.

66132204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511024 (or 5511022 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 66132204 is about 8132.1709278642. The cubic root of 66132204 is about 404.3936544677.

The spelling of 66132204 in words is "sixty-six million, one hundred thirty-two thousand, two hundred four".