561022651280 has 240 divisors, whose sum is σ = 1658865825792. Its totient is φ = 171824716800.

The previous prime is 561022651247. The next prime is 561022651289. The reversal of 561022651280 is 82156220165.

It is not an unprimeable number, because it can be changed into a prime (561022651289) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6955985 + ... + 7036175.

Almost surely, 2^561022651280 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 561022651280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829432912896).

561022651280 is an abundant number, since it is smaller than the sum of its proper divisors (1097843174512).

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

561022651280 is a wasteful number, since it uses less digits than its factorization.

561022651280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80286 (or 80249 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 561022651280 in words is "five hundred sixty-one billion, twenty-two million, six hundred fifty-one thousand, two hundred eighty".