64968466506 has 64 divisors (see below), whose sum is σ = 139992883200. Its totient is φ = 20035705536.

The previous prime is 64968466501. The next prime is 64968466531. The reversal of 64968466506 is 60566486946.

It is a self number, because there is not a number n which added to its sum of digits gives 64968466506.

It is not an unprimeable number, because it can be changed into a prime (64968466501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2467660 + ... + 2493848.

It is an arithmetic number, because the mean of its divisors is an integer number (2187388800).

Almost surely, 2^64968466506 is an apocalyptic number.

64968466506 is an abundant number, since it is smaller than the sum of its proper divisors (75024416694).

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

64968466506 is a wasteful number, since it uses less digits than its factorization.

64968466506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26723.

The product of its (nonzero) digits is 44789760, while the sum is 60.

The spelling of 64968466506 in words is "sixty-four billion, nine hundred sixty-eight million, four hundred sixty-six thousand, five hundred six".