66294149964 has 36 divisors (see below), whose sum is σ = 179941265784. Its totient is φ = 18941185536.

The previous prime is 66294149947. The next prime is 66294150031. The reversal of 66294149964 is 46994149266.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66294149898 and 66294149907.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56371989 + ... + 56373164.

It is an arithmetic number, because the mean of its divisors is an integer number (4998368494).

Almost surely, 2^66294149964 is an apocalyptic number.

It is an amenable number.

66294149964 is an abundant number, since it is smaller than the sum of its proper divisors (113647115820).

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

66294149964 is a wasteful number, since it uses less digits than its factorization.

66294149964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112745174 (or 112745165 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 60.

The spelling of 66294149964 in words is "sixty-six billion, two hundred ninety-four million, one hundred forty-nine thousand, nine hundred sixty-four".