66466453164 has 24 divisors (see below), whose sum is σ = 158871035568. Its totient is φ = 21615106560.

The previous prime is 66466453153. The next prime is 66466453177. The reversal of 66466453164 is 46135466466.

It is a happy number.

It is a super-2 number, since 2×66466453164² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67546717 + ... + 67547700.

It is an arithmetic number, because the mean of its divisors is an integer number (6619626482).

Almost surely, 2^66466453164 is an apocalyptic number.

It is an amenable number.

66466453164 is an abundant number, since it is smaller than the sum of its proper divisors (92404582404).

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

66466453164 is a wasteful number, since it uses less digits than its factorization.

66466453164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135094465 (or 135094463 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 51.

The spelling of 66466453164 in words is "sixty-six billion, four hundred sixty-six million, four hundred fifty-three thousand, one hundred sixty-four".