21607672662 has 48 divisors (see below), whose sum is σ = 48029082192. Its totient is φ = 7018234560.

The previous prime is 21607672631. The next prime is 21607672663. The reversal of 21607672662 is 26627670612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21607672663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25528 + ... + 209444.

It is an arithmetic number, because the mean of its divisors is an integer number (1000605879).

Almost surely, 2^21607672662 is an apocalyptic number.

21607672662 is an abundant number, since it is smaller than the sum of its proper divisors (26421409530).

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

21607672662 is a wasteful number, since it uses less digits than its factorization.

21607672662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184093 (or 184090 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 21607672662 in words is "twenty-one billion, six hundred seven million, six hundred seventy-two thousand, six hundred sixty-two".