632990221720 has 32 divisors (see below), whose sum is σ = 1424300565600. Its totient is φ = 253183187968.

The previous prime is 632990221697. The next prime is 632990221723. The reversal of 632990221720 is 27122099236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632990221723) 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, 412077 + ... + 1198243.

It is an arithmetic number, because the mean of its divisors is an integer number (44509392675).

Almost surely, 2^632990221720 is an apocalyptic number.

It is an amenable number.

632990221720 is an abundant number, since it is smaller than the sum of its proper divisors (791310343880).

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

632990221720 is a wasteful number, since it uses less digits than its factorization.

632990221720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806307 (or 806303 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 632990221720 in words is "six hundred thirty-two billion, nine hundred ninety million, two hundred twenty-one thousand, seven hundred twenty".