105878165227 has 2 divisors, whose sum is σ = 105878165228. Its totient is φ = 105878165226.

The previous prime is 105878165213. The next prime is 105878165231. The reversal of 105878165227 is 722561878501.

It is a strong prime.

It is an emirp because it is prime and its reverse (722561878501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105878165227 is a prime.

It is a super-2 number, since 2×105878165227² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105878165257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52939082613 + 52939082614.

It is an arithmetic number, because the mean of its divisors is an integer number (52939082614).

Almost surely, 2^105878165227 is an apocalyptic number.

105878165227 is a deficient number, since it is larger than the sum of its proper divisors (1).

105878165227 is an equidigital number, since it uses as much as digits as its factorization.

105878165227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1881600, while the sum is 52.

The spelling of 105878165227 in words is "one hundred five billion, eight hundred seventy-eight million, one hundred sixty-five thousand, two hundred twenty-seven".