665372882 has 8 divisors (see below), whose sum is σ = 999277452. Its totient is φ = 332280400.

The previous prime is 665372867. The next prime is 665372909. The reversal of 665372882 is 288273566.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 657358321 + 8014561 = 25639^2 + 2831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200969 + ... + 204252.

Almost surely, 2^665372882 is an apocalyptic number.

665372882 is a deficient number, since it is larger than the sum of its proper divisors (333904570).

665372882 is a wasteful number, since it uses less digits than its factorization.

665372882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406044.

The product of its digits is 967680, while the sum is 47.

The square root of 665372882 is about 25794.8227751229. The cubic root of 665372882 is about 873.0149862695.

The spelling of 665372882 in words is "six hundred sixty-five million, three hundred seventy-two thousand, eight hundred eighty-two".