22591561230 has 160 divisors (see below), whose sum is σ = 70282692000. Its totient is φ = 5163637248.

The previous prime is 22591561211. The next prime is 22591561313. The reversal of 22591561230 is 3216519522.

It is a happy number.

22591561230 is a `hidden beast` number, since 2 + 2 + 5 + 9 + 1 + 5 + 612 + 30 = 666.

It is a super-2 number, since 2×22591561230² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 630846 + ... + 665694.

It is an arithmetic number, because the mean of its divisors is an integer number (439266825).

Almost surely, 2^22591561230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22591561230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35141346000).

22591561230 is an abundant number, since it is smaller than the sum of its proper divisors (47691130770).

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

22591561230 is an equidigital number, since it uses as much as digits as its factorization.

22591561230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34893 (or 34866 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 22591561230 in words is "twenty-two billion, five hundred ninety-one million, five hundred sixty-one thousand, two hundred thirty".