21356325773106 has 32 divisors (see below), whose sum is σ = 43947174414528. Its totient is φ = 6914551215360.

The previous prime is 21356325773099. The next prime is 21356325773119. The reversal of 21356325773106 is 60137752365312.

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, 191165155 + ... + 191276838.

It is an arithmetic number, because the mean of its divisors is an integer number (1373349200454).

Almost surely, 2^{21356325773106} is an apocalyptic number.

21356325773106 is an abundant number, since it is smaller than the sum of its proper divisors (22590848641422).

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

21356325773106 is a wasteful number, since it uses less digits than its factorization.

21356325773106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382442266.

The product of its (nonzero) digits is 4762800, while the sum is 51.

The spelling of 21356325773106 in words is "twenty-one trillion, three hundred fifty-six billion, three hundred twenty-five million, seven hundred seventy-three thousand, one hundred six".