65285505684 has 96 divisors (see below), whose sum is σ = 193525113600. Its totient is φ = 18644653440.

The previous prime is 65285505679. The next prime is 65285505713. The reversal of 65285505684 is 48650558256.

It is a happy number.

65285505684 is a `hidden beast` number, since 6 + 5 + 2 + 8 + 550 + 5 + 6 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 65285505684.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1781902 + ... + 1818170.

It is an arithmetic number, because the mean of its divisors is an integer number (2015886600).

Almost surely, 2^65285505684 is an apocalyptic number.

It is an amenable number.

65285505684 is an abundant number, since it is smaller than the sum of its proper divisors (128239607916).

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

65285505684 is a wasteful number, since it uses less digits than its factorization.

65285505684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38670 (or 38662 counting only the distinct ones).

The product of its (nonzero) digits is 11520000, while the sum is 54.

The spelling of 65285505684 in words is "sixty-five billion, two hundred eighty-five million, five hundred five thousand, six hundred eighty-four".