21663226230504 has 64 divisors (see below), whose sum is σ = 55649692707840. Its totient is φ = 7024076948160.

The previous prime is 21663226230493. The next prime is 21663226230517. The reversal of 21663226230504 is 40503262236612.

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, 58727142 + ... + 59094869.

It is an arithmetic number, because the mean of its divisors is an integer number (869526448560).

Almost surely, 2^{21663226230504} is an apocalyptic number.

21663226230504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21663226230504 is an abundant number, since it is smaller than the sum of its proper divisors (33986466477336).

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

21663226230504 is a wasteful number, since it uses less digits than its factorization.

21663226230504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117822230 (or 117822226 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 21663226230504 in words is "twenty-one trillion, six hundred sixty-three billion, two hundred twenty-six million, two hundred thirty thousand, five hundred four".