64217338032 has 20 divisors (see below), whose sum is σ = 165894790040. Its totient is φ = 21405779328.

The previous prime is 64217338021. The next prime is 64217338039. The reversal of 64217338032 is 23083371246.

It is not an unprimeable number, because it can be changed into a prime (64217338039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668930557 + ... + 668930652.

It is an arithmetic number, because the mean of its divisors is an integer number (8294739502).

Almost surely, 2^64217338032 is an apocalyptic number.

It is an amenable number.

64217338032 is an abundant number, since it is smaller than the sum of its proper divisors (101677452008).

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

64217338032 is a wasteful number, since it uses less digits than its factorization.

64217338032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337861220 (or 1337861214 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 64217338032 in words is "sixty-four billion, two hundred seventeen million, three hundred thirty-eight thousand, thirty-two".