631160220 has 48 divisors (see below), whose sum is σ = 1788554880. Its totient is φ = 166280256.

The previous prime is 631160203. The next prime is 631160239. The reversal of 631160220 is 22061136.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58390 + ... + 68349.

It is an arithmetic number, because the mean of its divisors is an integer number (37261560).

Almost surely, 2^631160220 is an apocalyptic number.

631160220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

631160220 is an abundant number, since it is smaller than the sum of its proper divisors (1157394660).

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

631160220 is a wasteful number, since it uses less digits than its factorization.

631160220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126834 (or 126832 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 631160220 is about 25122.9023004907. The cubic root of 631160220 is about 857.7878154515.

The spelling of 631160220 in words is "six hundred thirty-one million, one hundred sixty thousand, two hundred twenty".