631220546612 has 24 divisors (see below), whose sum is σ = 1132428439296. Its totient is φ = 307720630688.

The previous prime is 631220546611. The next prime is 631220546729. The reversal of 631220546612 is 216645022136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631220546611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6333743 + ... + 6432630.

It is an arithmetic number, because the mean of its divisors is an integer number (47184518304).

Almost surely, 2^631220546612 is an apocalyptic number.

It is an amenable number.

631220546612 is a deficient number, since it is larger than the sum of its proper divisors (501207892684).

631220546612 is a wasteful number, since it uses less digits than its factorization.

631220546612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12766687 (or 12766685 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 631220546612 its reverse (216645022136), we get a palindrome (847865568748).

The spelling of 631220546612 in words is "six hundred thirty-one billion, two hundred twenty million, five hundred forty-six thousand, six hundred twelve".