66464066264 has 16 divisors (see below), whose sum is σ = 125020836720. Its totient is φ = 33125176480.

The previous prime is 66464066209. The next prime is 66464066297. The reversal of 66464066264 is 46266046466.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13354439 + ... + 13359414.

It is an arithmetic number, because the mean of its divisors is an integer number (7813802295).

Almost surely, 2^66464066264 is an apocalyptic number.

It is an amenable number.

66464066264 is a deficient number, since it is larger than the sum of its proper divisors (58556770456).

66464066264 is a wasteful number, since it uses less digits than its factorization.

66464066264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26714170 (or 26714166 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 50.

The spelling of 66464066264 in words is "sixty-six billion, four hundred sixty-four million, sixty-six thousand, two hundred sixty-four".