561255645007683 has 6 divisors (see below), whose sum is σ = 810702598344444. Its totient is φ = 374170430005116.

The previous prime is 561255645007667. The next prime is 561255645007691. The reversal of 561255645007683 is 386700546552165.

561255645007683 is a `hidden beast` number, since 5 + 6 + 1 + 2 + 5 + 5 + 64 + 500 + 7 + 68 + 3 = 666.

It is not a de Polignac number, because 561255645007683 - 2⁴ = 561255645007667 is a prime.

It is a super-2 number, since 2×561255645007683² (a number of 30 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 561255645007683.

It is not an unprimeable number, because it can be changed into a prime (561255645007643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31180869167085 + ... + 31180869167102.

It is an arithmetic number, because the mean of its divisors is an integer number (135117099724074).

Almost surely, 2^{561255645007683} is an apocalyptic number.

561255645007683 is a deficient number, since it is larger than the sum of its proper divisors (249446953336761).

561255645007683 is a wasteful number, since it uses less digits than its factorization.

561255645007683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62361738334193 (or 62361738334190 counting only the distinct ones).

The product of its (nonzero) digits is 181440000, while the sum is 63.

The spelling of 561255645007683 in words is "five hundred sixty-one trillion, two hundred fifty-five billion, six hundred forty-five million, seven thousand, six hundred eighty-three".