561544522406600 has 96 divisors (see below), whose sum is σ = 1382461784941320. Its totient is φ = 211394093137920.

The previous prime is 561544522406591. The next prime is 561544522406729. The reversal of 561544522406600 is 6604225445165.

It can be written as a sum of positive squares in 12 ways, for example, as 71841524979844 + 489702997426756 = 8475938^2 + 22129234^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61822724 + ... + 70321676.

Almost surely, 2^{561544522406600} is an apocalyptic number.

561544522406600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

561544522406600 is an abundant number, since it is smaller than the sum of its proper divisors (820917262534720).

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

561544522406600 is a wasteful number, since it uses less digits than its factorization.

561544522406600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8518419 (or 8518410 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 50.

The spelling of 561544522406600 in words is "five hundred sixty-one trillion, five hundred forty-four billion, five hundred twenty-two million, four hundred six thousand, six hundred".