69664966272 has 448 divisors, whose sum is σ = 230615480160. Its totient is φ = 20774983680.

The previous prime is 69664966237. The next prime is 69664966289. The reversal of 69664966272 is 27266946696.

69664966272 is a `hidden beast` number, since 69 + 66 + 496 + 6 + 27 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 68770438 + ... + 68771450.

Almost surely, 2^69664966272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69664966272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115307740080).

69664966272 is an abundant number, since it is smaller than the sum of its proper divisors (160950513888).

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

69664966272 is a wasteful number, since it uses less digits than its factorization.

69664966272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1096 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 63.

The spelling of 69664966272 in words is "sixty-nine billion, six hundred sixty-four million, nine hundred sixty-six thousand, two hundred seventy-two".