65499312 has 20 divisors (see below), whose sum is σ = 169206680. Its totient is φ = 21833088.

The previous prime is 65499307. The next prime is 65499349. The reversal of 65499312 is 21399456.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682237 + ... + 682332.

It is an arithmetic number, because the mean of its divisors is an integer number (8460334).

Almost surely, 2^65499312 is an apocalyptic number.

It is an amenable number.

65499312 is an abundant number, since it is smaller than the sum of its proper divisors (103707368).

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

65499312 is a wasteful number, since it uses less digits than its factorization.

65499312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364580 (or 1364574 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 65499312 is about 8093.1645232258. The cubic root of 65499312 is about 403.0994875748.

The spelling of 65499312 in words is "sixty-five million, four hundred ninety-nine thousand, three hundred twelve".