66316264 has 16 divisors (see below), whose sum is σ = 142106400. Its totient is φ = 28421232.

The previous prime is 66316259. The next prime is 66316267. The reversal of 66316264 is 46261366.

It is not an unprimeable number, because it can be changed into a prime (66316267) 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, 592054 + ... + 592165.

It is an arithmetic number, because the mean of its divisors is an integer number (8881650).

Almost surely, 2^66316264 is an apocalyptic number.

It is an amenable number.

66316264 is an abundant number, since it is smaller than the sum of its proper divisors (75790136).

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

66316264 is a wasteful number, since it uses less digits than its factorization.

66316264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184232 (or 1184228 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 66316264 is about 8143.4798458644. The cubic root of 66316264 is about 404.7684781497.

The spelling of 66316264 in words is "sixty-six million, three hundred sixteen thousand, two hundred sixty-four".