561236226232 has 64 divisors (see below), whose sum is σ = 1159534569600. Its totient is φ = 252543795840.

The previous prime is 561236226197. The next prime is 561236226319. The reversal of 561236226232 is 232622632165.

It is a super-2 number, since 2×561236226232² (a number of 24 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 15 ways as a sum of consecutive naturals, for example, 13717518 + ... + 13758370.

It is an arithmetic number, because the mean of its divisors is an integer number (18117727650).

Almost surely, 2^561236226232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561236226232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579767284800).

561236226232 is an abundant number, since it is smaller than the sum of its proper divisors (598298343368).

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

561236226232 is a wasteful number, since it uses less digits than its factorization.

561236226232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42436 (or 42432 counting only the distinct ones).

The product of its digits is 311040, while the sum is 40.

Adding to 561236226232 its reverse (232622632165), we get a palindrome (793858858397).

The spelling of 561236226232 in words is "five hundred sixty-one billion, two hundred thirty-six million, two hundred twenty-six thousand, two hundred thirty-two".