66164596 has 6 divisors (see below), whose sum is σ = 115788050. Its totient is φ = 33082296.

The previous prime is 66164591. The next prime is 66164641. The reversal of 66164596 is 69546166.

It can be written as a sum of positive squares in only one way, i.e., 35760400 + 30404196 = 5980^2 + 5514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66164591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270571 + ... + 8270578.

Almost surely, 2^66164596 is an apocalyptic number.

It is an amenable number.

66164596 is a deficient number, since it is larger than the sum of its proper divisors (49623454).

66164596 is a wasteful number, since it uses less digits than its factorization.

66164596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16541153 (or 16541151 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 66164596 is about 8134.1622801614. The cubic root of 66164596 is about 404.4596686049.

The spelling of 66164596 in words is "sixty-six million, one hundred sixty-four thousand, five hundred ninety-six".