21322479606 has 32 divisors (see below), whose sum is σ = 43416864000. Its totient is φ = 6979234080.

The previous prime is 21322479599. The next prime is 21322479631. The reversal of 21322479606 is 60697422312.

It is a Curzon number.

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, 170605 + ... + 267863.

It is an arithmetic number, because the mean of its divisors is an integer number (1356777000).

Almost surely, 2^21322479606 is an apocalyptic number.

21322479606 is an abundant number, since it is smaller than the sum of its proper divisors (22094384394).

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

21322479606 is a wasteful number, since it uses less digits than its factorization.

21322479606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97924.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 21322479606 in words is "twenty-one billion, three hundred twenty-two million, four hundred seventy-nine thousand, six hundred six".