6564120464 has 20 divisors (see below), whose sum is σ = 13874164080. Its totient is φ = 2983691040.

The previous prime is 6564120463. The next prime is 6564120469. The reversal of 6564120464 is 4640214656.

It is not an unprimeable number, because it can be changed into a prime (6564120463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18647894 + ... + 18648245.

It is an arithmetic number, because the mean of its divisors is an integer number (693708204).

Almost surely, 2^6564120464 is an apocalyptic number.

It is an amenable number.

6564120464 is an abundant number, since it is smaller than the sum of its proper divisors (7310043616).

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

6564120464 is a wasteful number, since it uses less digits than its factorization.

6564120464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37296158 (or 37296152 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 6564120464 is about 81019.2598336963. The cubic root of 6564120464 is about 1872.3721850507.

The spelling of 6564120464 in words is "six billion, five hundred sixty-four million, one hundred twenty thousand, four hundred sixty-four".