21601552573230 has 32 divisors (see below), whose sum is σ = 59249972772864. Its totient is φ = 4937497730976.

The previous prime is 21601552573229. The next prime is 21601552573259. The reversal of 21601552573230 is 3237525510612.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 51432267822 + ... + 51432268241.

It is an arithmetic number, because the mean of its divisors is an integer number (1851561649152).

Almost surely, 2^{21601552573230} is an apocalyptic number.

21601552573230 is an abundant number, since it is smaller than the sum of its proper divisors (37648420199634).

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

21601552573230 is a wasteful number, since it uses less digits than its factorization.

21601552573230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102864536080.

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 21601552573230 in words is "twenty-one trillion, six hundred one billion, five hundred fifty-two million, five hundred seventy-three thousand, two hundred thirty".