561606038508 has 24 divisors (see below), whose sum is σ = 1387497272112. Its totient is φ = 176190129664.

The previous prime is 561606038501. The next prime is 561606038531. The reversal of 561606038508 is 805830606165.

It is not an unprimeable number, because it can be changed into a prime (561606038501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376485185 + ... + 1376485592.

It is an arithmetic number, because the mean of its divisors is an integer number (57812386338).

Almost surely, 2^561606038508 is an apocalyptic number.

It is an amenable number.

561606038508 is an abundant number, since it is smaller than the sum of its proper divisors (825891233604).

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

561606038508 is a wasteful number, since it uses less digits than its factorization.

561606038508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752970801 (or 2752970799 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 561606038508 in words is "five hundred sixty-one billion, six hundred six million, thirty-eight thousand, five hundred eight".