105556566006161 has 4 divisors (see below), whose sum is σ = 105556857229824. Its totient is φ = 105556274782500.

The previous prime is 105556566006127. The next prime is 105556566006181. The reversal of 105556566006161 is 161600665655501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105556566006161 is a prime.

It is a super-2 number, since 2×105556566006161² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105556566006181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145067465 + ... + 145793286.

It is an arithmetic number, because the mean of its divisors is an integer number (26389214307456).

Almost surely, 2^{105556566006161} is an apocalyptic number.

It is an amenable number.

105556566006161 is a deficient number, since it is larger than the sum of its proper divisors (291223663).

105556566006161 is an equidigital number, since it uses as much as digits as its factorization.

105556566006161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291223662.

The product of its (nonzero) digits is 4860000, while the sum is 53.

The spelling of 105556566006161 in words is "one hundred five trillion, five hundred fifty-six billion, five hundred sixty-six million, six thousand, one hundred sixty-one".