21622159676 has 48 divisors (see below), whose sum is σ = 42923717760. Its totient is φ = 9447710400.

The previous prime is 21622159609. The next prime is 21622159679. The reversal of 21622159676 is 67695122612.

It is a self number, because there is not a number n which added to its sum of digits gives 21622159676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21622159679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1600751 + ... + 1614201.

It is an arithmetic number, because the mean of its divisors is an integer number (894244120).

Almost surely, 2^21622159676 is an apocalyptic number.

21622159676 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

21622159676 is a deficient number, since it is larger than the sum of its proper divisors (21301558084).

21622159676 is a wasteful number, since it uses less digits than its factorization.

21622159676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15114 (or 15112 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The spelling of 21622159676 in words is "twenty-one billion, six hundred twenty-two million, one hundred fifty-nine thousand, six hundred seventy-six".