669982272 has 56 divisors (see below), whose sum is σ = 1849745856. Its totient is φ = 213616128.

The previous prime is 669982267. The next prime is 669982301. The reversal of 669982272 is 272289966.

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, 71443 + ... + 80274.

It is an arithmetic number, because the mean of its divisors is an integer number (33031176).

Almost surely, 2^669982272 is an apocalyptic number.

It is an amenable number.

669982272 is an abundant number, since it is smaller than the sum of its proper divisors (1179763584).

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

669982272 is a wasteful number, since it uses less digits than its factorization.

669982272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151755 (or 151745 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 669982272 is about 25884.0157626285. The cubic root of 669982272 is about 875.0262945023.

The spelling of 669982272 in words is "six hundred sixty-nine million, nine hundred eighty-two thousand, two hundred seventy-two".