10561110555 has 16 divisors (see below), whose sum is σ = 16899156000. Its totient is φ = 5632132608.

The previous prime is 10561110523. The next prime is 10561110557. The reversal of 10561110555 is 55501116501.

It is not a de Polignac number, because 10561110555 - 2⁵ = 10561110523 is a prime.

It is a super-2 number, since 2×10561110555² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10561110557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245821 + ... + 285569.

It is an arithmetic number, because the mean of its divisors is an integer number (1056197250).

Almost surely, 2^10561110555 is an apocalyptic number.

10561110555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10561110555 is a deficient number, since it is larger than the sum of its proper divisors (6338045445).

10561110555 is a wasteful number, since it uses less digits than its factorization.

10561110555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57470.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 10561110555 in words is "ten billion, five hundred sixty-one million, one hundred ten thousand, five hundred fifty-five".