21630104632 has 16 divisors (see below), whose sum is σ = 42942119760. Its totient is φ = 10178872704.

The previous prime is 21630104549. The next prime is 21630104663. The reversal of 21630104632 is 23640103612.

It is a super-2 number, since 2×21630104632² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21630104632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79522308 + ... + 79522579.

It is an arithmetic number, because the mean of its divisors is an integer number (2683882485).

Almost surely, 2^21630104632 is an apocalyptic number.

It is an amenable number.

21630104632 is a deficient number, since it is larger than the sum of its proper divisors (21312015128).

21630104632 is a wasteful number, since it uses less digits than its factorization.

21630104632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159044910 (or 159044906 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 21630104632 in words is "twenty-one billion, six hundred thirty million, one hundred four thousand, six hundred thirty-two".