65865084336 has 160 divisors (see below), whose sum is σ = 192197976320. Its totient is φ = 21593143296.

The previous prime is 65865084289. The next prime is 65865084349. The reversal of 65865084336 is 63348056856.

It is a happy number.

65865084336 is a `hidden beast` number, since 6 + 586 + 50 + 8 + 4 + 3 + 3 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6825531 + ... + 6835173.

It is an arithmetic number, because the mean of its divisors is an integer number (1201237352).

Almost surely, 2^65865084336 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 65865084336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96098988160).

65865084336 is an abundant number, since it is smaller than the sum of its proper divisors (126332891984).

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

65865084336 is a wasteful number, since it uses less digits than its factorization.

65865084336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9920 (or 9908 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 65865084336 in words is "sixty-five billion, eight hundred sixty-five million, eighty-four thousand, three hundred thirty-six".