65017334656 has 64 divisors (see below), whose sum is σ = 134179776000. Its totient is φ = 31348293120.

The previous prime is 65017334633. The next prime is 65017334663. The reversal of 65017334656 is 65643371056.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 1093995 + ... + 1151893.

It is an arithmetic number, because the mean of its divisors is an integer number (2096559000).

Almost surely, 2^65017334656 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 65017334656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67089888000).

65017334656 is an abundant number, since it is smaller than the sum of its proper divisors (69162441344).

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

65017334656 is a wasteful number, since it uses less digits than its factorization.

65017334656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58227 (or 58215 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 46.

The spelling of 65017334656 in words is "sixty-five billion, seventeen million, three hundred thirty-four thousand, six hundred fifty-six".