21626512516102 has 16 divisors (see below), whose sum is σ = 36454054543200. Its totient is φ = 9547490475072.

The previous prime is 21626512516019. The next prime is 21626512516123. The reversal of 21626512516102 is 20161521562612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18082367727 + ... + 18082368922.

It is an arithmetic number, because the mean of its divisors is an integer number (2278378408950).

Almost surely, 2^{21626512516102} is an apocalyptic number.

21626512516102 is a deficient number, since it is larger than the sum of its proper divisors (14827542027098).

21626512516102 is a wasteful number, since it uses less digits than its factorization.

21626512516102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36164736687.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 21626512516102 in words is "twenty-one trillion, six hundred twenty-six billion, five hundred twelve million, five hundred sixteen thousand, one hundred two".