111646846378117 has 4 divisors (see below), whose sum is σ = 111647624532160. Its totient is φ = 111646068224076.

The previous prime is 111646846378099. The next prime is 111646846378127. The reversal of 111646846378117 is 711873648646111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111646846378117 - 2²³ = 111646837989509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111646846378127) 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, 388861767 + ... + 389148772.

It is an arithmetic number, because the mean of its divisors is an integer number (27911906133040).

Almost surely, 2^{111646846378117} is an apocalyptic number.

It is an amenable number.

111646846378117 is a deficient number, since it is larger than the sum of its proper divisors (778154043).

111646846378117 is an equidigital number, since it uses as much as digits as its factorization.

111646846378117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778154042.

The product of its digits is 32514048, while the sum is 64.

The spelling of 111646846378117 in words is "one hundred eleven trillion, six hundred forty-six billion, eight hundred forty-six million, three hundred seventy-eight thousand, one hundred seventeen".