561103444332 has 72 divisors (see below), whose sum is σ = 1524760473600. Its totient is φ = 173420539488.

The previous prime is 561103444277. The next prime is 561103444333. The reversal of 561103444332 is 233444301165.

561103444332 is a `hidden beast` number, since 5 + 611 + 0 + 3 + 4 + 4 + 4 + 3 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (561103444333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8694732 + ... + 8759027.

It is an arithmetic number, because the mean of its divisors is an integer number (21177228800).

Almost surely, 2^561103444332 is an apocalyptic number.

It is an amenable number.

561103444332 is an abundant number, since it is smaller than the sum of its proper divisors (963657029268).

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

561103444332 is a wasteful number, since it uses less digits than its factorization.

561103444332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17453835 (or 17453830 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 561103444332 its reverse (233444301165), we get a palindrome (794547745497).

The spelling of 561103444332 in words is "five hundred sixty-one billion, one hundred three million, four hundred forty-four thousand, three hundred thirty-two".