105901957715 has 4 divisors (see below), whose sum is σ = 127082349264. Its totient is φ = 84721566168.

The previous prime is 105901957697. The next prime is 105901957723. The reversal of 105901957715 is 517759109501.

It is a happy number.

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 105901957715 - 2²⁸ = 105633522259 is a prime.

It is a super-2 number, since 2×105901957715² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10590195767 + ... + 10590195776.

It is an arithmetic number, because the mean of its divisors is an integer number (31770587316).

Almost surely, 2^105901957715 is an apocalyptic number.

105901957715 is a deficient number, since it is larger than the sum of its proper divisors (21180391549).

105901957715 is an equidigital number, since it uses as much as digits as its factorization.

105901957715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21180391548.

The product of its (nonzero) digits is 496125, while the sum is 50.

The spelling of 105901957715 in words is "one hundred five billion, nine hundred one million, nine hundred fifty-seven thousand, seven hundred fifteen".