64264336382016 has 63 divisors (see below), whose sum is σ = 184202668426413. Its totient is φ = 21421381328640.

The previous prime is 64264336382009. The next prime is 64264336382017. The reversal of 64264336382016 is 61028363346246.

The square root of 64264336382016 is 8016504.

It is a perfect power (a square), and thus also a powerful number.

64264336382016 is a `hidden beast` number, since 6 + 4 + 264 + 3 + 363 + 8 + 2 + 0 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20406035428416 + 43858300953600 = 4517304^2 + 6622560^2 .

It is not an unprimeable number, because it can be changed into a prime (64264336382017) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 192229086 + ... + 192563106.

Almost surely, 2^{64264336382016} is an apocalyptic number.

64264336382016 is the 8016504-th square number.

It is an amenable number.

64264336382016 is an abundant number, since it is smaller than the sum of its proper divisors (119938332044397).

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

64264336382016 is an frugal number, since it uses more digits than its factorization.

64264336382016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668060 (or 334026 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 54.

The spelling of 64264336382016 in words is "sixty-four trillion, two hundred sixty-four billion, three hundred thirty-six million, three hundred eighty-two thousand, sixteen".