10611055105561 has 8 divisors (see below), whose sum is σ = 10627819237224. Its totient is φ = 10594291630080.

The previous prime is 10611055105537. The next prime is 10611055105571. The reversal of 10611055105561 is 16550155011601.

It can be written as a sum of positive squares in 4 ways, for example, as 1334498592025 + 9276556513536 = 1155205^2 + 3045744^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10611055105561 - 2⁵ = 10611055105529 is a prime.

It is a super-2 number, since 2×10611055105561² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10611055105561.

It is not an unprimeable number, because it can be changed into a prime (10611055105531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39912705 + ... + 40177681.

It is an arithmetic number, because the mean of its divisors is an integer number (1328477404653).

Almost surely, 2^{10611055105561} is an apocalyptic number.

It is an amenable number.

10611055105561 is a deficient number, since it is larger than the sum of its proper divisors (16764131663).

10611055105561 is an equidigital number, since it uses as much as digits as its factorization.

10611055105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328091.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 10611055105561 in words is "ten trillion, six hundred eleven billion, fifty-five million, one hundred five thousand, five hundred sixty-one".