64366732394496 has 1200 divisors, whose sum is σ = 225869408904832. Its totient is φ = 17887238553600.

The previous prime is 64366732394467. The next prime is 64366732394539. The reversal of 64366732394496 is 69449323766346.

64366732394496 is a `hidden beast` number, since 6 + 4 + 3 + 66 + 73 + 2 + 3 + 9 + 4 + 496 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 54967319991 + ... + 54967321161.

Almost surely, 2^{64366732394496} 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 64366732394496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112934704452416).

64366732394496 is an abundant number, since it is smaller than the sum of its proper divisors (161502676510336).

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

64366732394496 is an equidigital number, since it uses as much as digits as its factorization.

64366732394496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1341 counting only the distinct ones).

The product of its digits is 2539579392, while the sum is 72.

The spelling of 64366732394496 in words is "sixty-four trillion, three hundred sixty-six billion, seven hundred thirty-two million, three hundred ninety-four thousand, four hundred ninety-six".