21632136562230 has 16 divisors (see below), whose sum is σ = 51917127749424. Its totient is φ = 5768569749920.

The previous prime is 21632136562217. The next prime is 21632136562273. The reversal of 21632136562230 is 3226563123612.

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 7 ways as a sum of consecutive naturals, for example, 360535609341 + ... + 360535609400.

It is an arithmetic number, because the mean of its divisors is an integer number (3244820484339).

Almost surely, 2^{21632136562230} is an apocalyptic number.

21632136562230 is an abundant number, since it is smaller than the sum of its proper divisors (30284991187194).

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

21632136562230 is a wasteful number, since it uses less digits than its factorization.

21632136562230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721071218751.

The product of its (nonzero) digits is 466560, while the sum is 42.

Adding to 21632136562230 its reverse (3226563123612), we get a palindrome (24858699685842).

The spelling of 21632136562230 in words is "twenty-one trillion, six hundred thirty-two billion, one hundred thirty-six million, five hundred sixty-two thousand, two hundred thirty".