561247139596 has 24 divisors (see below), whose sum is σ = 1153892721744. Its totient is φ = 235488310080.

The previous prime is 561247139567. The next prime is 561247139599. The reversal of 561247139596 is 695931742165.

It is a super-2 number, since 2×561247139596² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 561247139596.

It is not an unprimeable number, because it can be changed into a prime (561247139599) 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, 490600075 + ... + 490601218.

It is an arithmetic number, because the mean of its divisors is an integer number (48078863406).

Almost surely, 2^561247139596 is an apocalyptic number.

It is an amenable number.

561247139596 is an abundant number, since it is smaller than the sum of its proper divisors (592645582148).

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

561247139596 is a wasteful number, since it uses less digits than its factorization.

561247139596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981201321 (or 981201319 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 58.

The spelling of 561247139596 in words is "five hundred sixty-one billion, two hundred forty-seven million, one hundred thirty-nine thousand, five hundred ninety-six".