561494602536 has 32 divisors (see below), whose sum is σ = 1604270293440. Its totient is φ = 160427029248.

The previous prime is 561494602531. The next prime is 561494602541. The reversal of 561494602536 is 635206494165.

It is an interprime number because it is at equal distance from previous prime (561494602531) and next prime (561494602541).

It is not an unprimeable number, because it can be changed into a prime (561494602531) 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, 1671114721 + ... + 1671115056.

It is an arithmetic number, because the mean of its divisors is an integer number (50133446670).

Almost surely, 2^561494602536 is an apocalyptic number.

561494602536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

561494602536 is an abundant number, since it is smaller than the sum of its proper divisors (1042775690904).

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

561494602536 is a wasteful number, since it uses less digits than its factorization.

561494602536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342229793 (or 3342229789 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 561494602536 in words is "five hundred sixty-one billion, four hundred ninety-four million, six hundred two thousand, five hundred thirty-six".