264334421641264 has 80 divisors (see below), whose sum is σ = 566610557867200. Its totient is φ = 118669656683520.

The previous prime is 264334421641207. The next prime is 264334421641271. The reversal of 264334421641264 is 462146124433462.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22401637 + ... + 32101435.

It is an arithmetic number, because the mean of its divisors is an integer number (7082631973340).

Almost surely, 2^{264334421641264} 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 264334421641264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283305278933600).

264334421641264 is an abundant number, since it is smaller than the sum of its proper divisors (302276136225936).

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

264334421641264 is a wasteful number, since it uses less digits than its factorization.

264334421641264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9703398 (or 9703392 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 52.

The spelling of 264334421641264 in words is "two hundred sixty-four trillion, three hundred thirty-four billion, four hundred twenty-one million, six hundred forty-one thousand, two hundred sixty-four".