105865178011679 has 2 divisors, whose sum is σ = 105865178011680. Its totient is φ = 105865178011678.

The previous prime is 105865178011673. The next prime is 105865178011739. The reversal of 105865178011679 is 976110871568501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105865178011679 - 2²⁴ = 105865161234463 is a prime.

It is a super-2 number, since 2×105865178011679² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105865178011673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52932589005839 + 52932589005840.

It is an arithmetic number, because the mean of its divisors is an integer number (52932589005840).

Almost surely, 2^{105865178011679} is an apocalyptic number.

105865178011679 is a deficient number, since it is larger than the sum of its proper divisors (1).

105865178011679 is an equidigital number, since it uses as much as digits as its factorization.

105865178011679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25401600, while the sum is 65.

The spelling of 105865178011679 in words is "one hundred five trillion, eight hundred sixty-five billion, one hundred seventy-eight million, eleven thousand, six hundred seventy-nine".