111697606078959 has 16 divisors (see below), whose sum is σ = 149439664854144. Its totient is φ = 74210313194400.

The previous prime is 111697606078909. The next prime is 111697606078967. The reversal of 111697606078959 is 959870606796111.

It is not a de Polignac number, because 111697606078959 - 2²³ = 111697597690351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111697606078909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122968764 + ... + 123873774.

It is an arithmetic number, because the mean of its divisors is an integer number (9339979053384).

Almost surely, 2^{111697606078959} is an apocalyptic number.

111697606078959 is a deficient number, since it is larger than the sum of its proper divisors (37742058775185).

111697606078959 is a wasteful number, since it uses less digits than its factorization.

111697606078959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045718.

The product of its (nonzero) digits is 308629440, while the sum is 75.

The spelling of 111697606078959 in words is "one hundred eleven trillion, six hundred ninety-seven billion, six hundred six million, seventy-eight thousand, nine hundred fifty-nine".