10505555500056 has 64 divisors (see below), whose sum is σ = 27145860134400. Its totient is φ = 3386051011968.

The previous prime is 10505555500049. The next prime is 10505555500087. The reversal of 10505555500056 is 65000555550501.

It is a super-2 number, since 2×10505555500056² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10505555499990 and 10505555500017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56011411 + ... + 56198658.

It is an arithmetic number, because the mean of its divisors is an integer number (424154064600).

Almost surely, 2^{10505555500056} is an apocalyptic number.

It is an amenable number.

10505555500056 is an abundant number, since it is smaller than the sum of its proper divisors (16640304634344).

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

10505555500056 is a wasteful number, since it uses less digits than its factorization.

10505555500056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112210208 (or 112210204 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 42.

The spelling of 10505555500056 in words is "ten trillion, five hundred five billion, five hundred fifty-five million, five hundred thousand, fifty-six".