632672666 has 8 divisors (see below), whose sum is σ = 949486944. Its totient is φ = 316177020.

The previous prime is 632672647. The next prime is 632672669. The reversal of 632672666 is 666276236.

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

It is not an unprimeable number, because it can be changed into a prime (632672669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74630 + ... + 82673.

It is an arithmetic number, because the mean of its divisors is an integer number (118685868).

Almost surely, 2^632672666 is an apocalyptic number.

632672666 is a deficient number, since it is larger than the sum of its proper divisors (316814278).

632672666 is a wasteful number, since it uses less digits than its factorization.

632672666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159316.

The product of its digits is 653184, while the sum is 44.

The square root of 632672666 is about 25152.9852303857. The cubic root of 632672666 is about 858.4724397370.

The spelling of 632672666 in words is "six hundred thirty-two million, six hundred seventy-two thousand, six hundred sixty-six".