66228692268 has 48 divisors (see below), whose sum is σ = 160666311680. Its totient is φ = 21210379200.

The previous prime is 66228692219. The next prime is 66228692291. The reversal of 66228692268 is 86229682266.

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 15 ways as a sum of consecutive naturals, for example, 588703 + ... + 692118.

Almost surely, 2^66228692268 is an apocalyptic number.

It is an amenable number.

66228692268 is an abundant number, since it is smaller than the sum of its proper divisors (94437619412).

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

66228692268 is a wasteful number, since it uses less digits than its factorization.

66228692268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280998 (or 1280996 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 57.

The spelling of 66228692268 in words is "sixty-six billion, two hundred twenty-eight million, six hundred ninety-two thousand, two hundred sixty-eight".