111727617663 has 4 divisors (see below), whose sum is σ = 148970156888. Its totient is φ = 74485078440.

The previous prime is 111727617653. The next prime is 111727617671. The reversal of 111727617663 is 366716727111.

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

It is not a de Polignac number, because 111727617663 - 2²² = 111723423359 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 (111727617653) 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, 18621269608 + ... + 18621269613.

It is an arithmetic number, because the mean of its divisors is an integer number (37242539222).

Almost surely, 2^111727617663 is an apocalyptic number.

111727617663 is a deficient number, since it is larger than the sum of its proper divisors (37242539225).

111727617663 is an equidigital number, since it uses as much as digits as its factorization.

111727617663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37242539224.

The product of its digits is 444528, while the sum is 48.

The spelling of 111727617663 in words is "one hundred eleven billion, seven hundred twenty-seven million, six hundred seventeen thousand, six hundred sixty-three".