105186555853 has 4 divisors (see below), whose sum is σ = 105200272188. Its totient is φ = 105172839520.

The previous prime is 105186555847. The next prime is 105186555857. The reversal of 105186555853 is 358555681501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65383512804 + 39803043049 = 255702^2 + 199507^2 .

It is a cyclic number.

It is not a de Polignac number, because 105186555853 - 2⁵ = 105186555821 is a prime.

It is a super-2 number, since 2×105186555853² (a number of 23 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 105186555853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105186555857) 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, 6846658 + ... + 6862003.

It is an arithmetic number, because the mean of its divisors is an integer number (26300068047).

Almost surely, 2^105186555853 is an apocalyptic number.

It is an amenable number.

105186555853 is a deficient number, since it is larger than the sum of its proper divisors (13716335).

105186555853 is an equidigital number, since it uses as much as digits as its factorization.

105186555853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13716334.

The product of its (nonzero) digits is 3600000, while the sum is 52.

The spelling of 105186555853 in words is "one hundred five billion, one hundred eighty-six million, five hundred fifty-five thousand, eight hundred fifty-three".