105165578120107 has 4 divisors (see below), whose sum is σ = 105205886891640. Its totient is φ = 105125269348576.

The previous prime is 105165578120093. The next prime is 105165578120137. The reversal of 105165578120107 is 701021875561501.

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

It is a cyclic number.

It is not a de Polignac number, because 105165578120107 - 2²³ = 105165569731499 is a prime.

It is a super-2 number, since 2×105165578120107² (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 (105165578120137) 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, 20154381853 + ... + 20154387070.

It is an arithmetic number, because the mean of its divisors is an integer number (26301471722910).

Almost surely, 2^{105165578120107} is an apocalyptic number.

105165578120107 is a deficient number, since it is larger than the sum of its proper divisors (40308771533).

105165578120107 is an equidigital number, since it uses as much as digits as its factorization.

105165578120107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40308771532.

The product of its (nonzero) digits is 588000, while the sum is 49.

The spelling of 105165578120107 in words is "one hundred five trillion, one hundred sixty-five billion, five hundred seventy-eight million, one hundred twenty thousand, one hundred seven".