22773061556 has 24 divisors (see below), whose sum is σ = 45616992960. Its totient is φ = 9744697152.

The previous prime is 22773061541. The next prime is 22773061561. The reversal of 22773061556 is 65516037722.

It is a super-2 number, since 2×22773061556² (a number of 22 digits) contains 22 as substring.

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, 614441 + ... + 650448.

It is an arithmetic number, because the mean of its divisors is an integer number (1900708040).

Almost surely, 2^22773061556 is an apocalyptic number.

It is an amenable number.

22773061556 is an abundant number, since it is smaller than the sum of its proper divisors (22843931404).

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

22773061556 is a wasteful number, since it uses less digits than its factorization.

22773061556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265543 (or 1265541 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 22773061556 in words is "twenty-two billion, seven hundred seventy-three million, sixty-one thousand, five hundred fifty-six".