212631560144 has 40 divisors (see below), whose sum is σ = 441729048960. Its totient is φ = 98795294208.

The previous prime is 212631560123. The next prime is 212631560159. The reversal of 212631560144 is 441065136212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4926194 + ... + 4969169.

It is an arithmetic number, because the mean of its divisors is an integer number (11043226224).

Almost surely, 2^212631560144 is an apocalyptic number.

It is an amenable number.

212631560144 is an abundant number, since it is smaller than the sum of its proper divisors (229097488816).

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

212631560144 is a wasteful number, since it uses less digits than its factorization.

212631560144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9895467 (or 9895461 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 212631560144 its reverse (441065136212), we get a palindrome (653696696356).

The spelling of 212631560144 in words is "two hundred twelve billion, six hundred thirty-one million, five hundred sixty thousand, one hundred forty-four".