631796656 has 20 divisors (see below), whose sum is σ = 1225187704. Its totient is φ = 315619200.

The previous prime is 631796621. The next prime is 631796681. The reversal of 631796656 is 656697136.

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, 1876 + ... + 35596.

Almost surely, 2^631796656 is an apocalyptic number.

It is an amenable number.

631796656 is a deficient number, since it is larger than the sum of its proper divisors (593391048).

631796656 is a wasteful number, since it uses less digits than its factorization.

631796656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34900 (or 34894 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 49.

The square root of 631796656 is about 25135.5655595811. The cubic root of 631796656 is about 858.0760379106.

The spelling of 631796656 in words is "six hundred thirty-one million, seven hundred ninety-six thousand, six hundred fifty-six".