66488132 has 6 divisors (see below), whose sum is σ = 116354238. Its totient is φ = 33244064.

The previous prime is 66488113. The next prime is 66488137. The reversal of 66488132 is 23188466.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 47004736 + 19483396 = 6856^2 + 4414^2 .

It is not an unprimeable number, because it can be changed into a prime (66488137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8311013 + ... + 8311020.

It is an arithmetic number, because the mean of its divisors is an integer number (19392373).

Almost surely, 2^66488132 is an apocalyptic number.

It is an amenable number.

66488132 is a deficient number, since it is larger than the sum of its proper divisors (49866106).

66488132 is a wasteful number, since it uses less digits than its factorization.

66488132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16622037 (or 16622035 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 66488132 is about 8154.0255089128. The cubic root of 66488132 is about 405.1178481415.

The spelling of 66488132 in words is "sixty-six million, four hundred eighty-eight thousand, one hundred thirty-two".