21632240331604 has 48 divisors (see below), whose sum is σ = 44320998830976. Its totient is φ = 9044576524800.

The previous prime is 21632240331593. The next prime is 21632240331671. The reversal of 21632240331604 is 40613304223612.

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, 42141672 + ... + 42651904.

It is an arithmetic number, because the mean of its divisors is an integer number (923354142312).

Almost surely, 2^{21632240331604} is an apocalyptic number.

It is an amenable number.

21632240331604 is an abundant number, since it is smaller than the sum of its proper divisors (22688758499372).

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

21632240331604 is a wasteful number, since it uses less digits than its factorization.

21632240331604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547216 (or 547214 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 21632240331604 in words is "twenty-one trillion, six hundred thirty-two billion, two hundred forty million, three hundred thirty-one thousand, six hundred four".