564744647421164 has 48 divisors (see below), whose sum is σ = 1178602612540416. Its totient is φ = 231509228808000.

The previous prime is 564744647421139. The next prime is 564744647421167. The reversal of 564744647421164 is 461124746447465.

It is a super-2 number, since 2×564744647421164² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 564744647421164.

It is not an unprimeable number, because it can be changed into a prime (564744647421167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157879529 + ... + 161416959.

It is an arithmetic number, because the mean of its divisors is an integer number (24554221094592).

Almost surely, 2^{564744647421164} is an apocalyptic number.

It is an amenable number.

564744647421164 is an abundant number, since it is smaller than the sum of its proper divisors (613857965119252).

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

564744647421164 is a wasteful number, since it uses less digits than its factorization.

564744647421164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785366 (or 3785364 counting only the distinct ones).

The product of its digits is 433520640, while the sum is 65.

The spelling of 564744647421164 in words is "five hundred sixty-four trillion, seven hundred forty-four billion, six hundred forty-seven million, four hundred twenty-one thousand, one hundred sixty-four".