64567245516 has 24 divisors (see below), whose sum is σ = 151843184640. Its totient is φ = 21352946832.

The previous prime is 64567245499. The next prime is 64567245529. The reversal of 64567245516 is 61554276546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21181956 + ... + 21185003.

It is an arithmetic number, because the mean of its divisors is an integer number (6326799360).

Almost surely, 2^64567245516 is an apocalyptic number.

It is an amenable number.

64567245516 is an abundant number, since it is smaller than the sum of its proper divisors (87275939124).

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

64567245516 is a wasteful number, since it uses less digits than its factorization.

64567245516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42367093 (or 42367091 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 51.

The spelling of 64567245516 in words is "sixty-four billion, five hundred sixty-seven million, two hundred forty-five thousand, five hundred sixteen".