66314928 has 40 divisors (see below), whose sum is σ = 172207728. Its totient is φ = 21989632.

The previous prime is 66314887. The next prime is 66314929. The reversal of 66314928 is 82941366.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (66314929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5950 + ... + 12962.

Almost surely, 2^66314928 is an apocalyptic number.

It is an amenable number.

66314928 is an abundant number, since it is smaller than the sum of its proper divisors (105892800).

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

66314928 is a wasteful number, since it uses less digits than its factorization.

66314928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7221 (or 7215 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 66314928 is about 8143.3978166365. The cubic root of 66314928 is about 404.7657599914.

The spelling of 66314928 in words is "sixty-six million, three hundred fourteen thousand, nine hundred twenty-eight".