665274922 has 12 divisors (see below), whose sum is σ = 1080580230. Its totient is φ = 307049808.

The previous prime is 665274917. The next prime is 665274941. The reversal of 665274922 is 229472566.

665274922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 281937681 + 383337241 = 16791^2 + 19579^2 .

It is a super-3 number, since 3×665274922³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 983797 + ... + 984472.

Almost surely, 2^665274922 is an apocalyptic number.

665274922 is a deficient number, since it is larger than the sum of its proper divisors (415305308).

665274922 is a wasteful number, since it uses less digits than its factorization.

665274922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968297 (or 1968284 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 665274922 is about 25792.9238745823. The cubic root of 665274922 is about 872.9721407475.

The spelling of 665274922 in words is "six hundred sixty-five million, two hundred seventy-four thousand, nine hundred twenty-two".