65415318688 has 96 divisors (see below), whose sum is σ = 133555334976. Its totient is φ = 31522203648.

The previous prime is 65415318667. The next prime is 65415318737. The reversal of 65415318688 is 88681351456.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35036731 + ... + 35038597.

It is an arithmetic number, because the mean of its divisors is an integer number (1391201406).

Almost surely, 2^65415318688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65415318688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66777667488).

65415318688 is an abundant number, since it is smaller than the sum of its proper divisors (68140016288).

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

65415318688 is a wasteful number, since it uses less digits than its factorization.

65415318688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286 (or 2278 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 55.

The spelling of 65415318688 in words is "sixty-five billion, four hundred fifteen million, three hundred eighteen thousand, six hundred eighty-eight".