561022255676 has 24 divisors (see below), whose sum is σ = 987550707024. Its totient is φ = 278865196160.

The previous prime is 561022255631. The next prime is 561022255693. The reversal of 561022255676 is 676552220165.

It is a super-2 number, since 2×561022255676² (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 561022255676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9827696 + ... + 9884616.

It is an arithmetic number, because the mean of its divisors is an integer number (41147946126).

Almost surely, 2^561022255676 is an apocalyptic number.

It is an amenable number.

561022255676 is a deficient number, since it is larger than the sum of its proper divisors (426528451348).

561022255676 is a wasteful number, since it uses less digits than its factorization.

561022255676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71341 (or 71339 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 561022255676 in words is "five hundred sixty-one billion, twenty-two million, two hundred fifty-five thousand, six hundred seventy-six".