626242056360561 has 12 divisors (see below), whose sum is σ = 904572077060340. Its totient is φ = 417494603683680.

The previous prime is 626242056360541. The next prime is 626242056360611. The reversal of 626242056360561 is 165063650242626.

626242056360561 is a `hidden beast` number, since 6 + 2 + 6 + 2 + 4 + 20 + 5 + 6 + 3 + 605 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 188668245750336 + 437573810610225 = 13735656^2 + 20918265^2 .

It is not a de Polignac number, because 626242056360561 - 2⁹ = 626242056360049 is a prime.

It is a super-2 number, since 2×626242056360561² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 626242056360498 and 626242056360507.

It is not an unprimeable number, because it can be changed into a prime (626242056360541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63643471 + ... + 72821531.

It is an arithmetic number, because the mean of its divisors is an integer number (75381006421695).

Almost surely, 2^{626242056360561} is an apocalyptic number.

It is an amenable number.

626242056360561 is a deficient number, since it is larger than the sum of its proper divisors (278330020699779).

626242056360561 is a wasteful number, since it uses less digits than its factorization.

626242056360561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16759456 (or 16759453 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 54.

The spelling of 626242056360561 in words is "six hundred twenty-six trillion, two hundred forty-two billion, fifty-six million, three hundred sixty thousand, five hundred sixty-one".