111727697668 has 12 divisors (see below), whose sum is σ = 195577553052. Its totient is φ = 55848396800.

The previous prime is 111727697663. The next prime is 111727697689. The reversal of 111727697668 is 866796727111.

It can be written as a sum of positive squares in 2 ways, for example, as 4260433984 + 107467263684 = 65272^2 + 327822^2 .

It is not an unprimeable number, because it can be changed into a prime (111727697663) 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, 3846733 + ... + 3875668.

It is an arithmetic number, because the mean of its divisors is an integer number (16298129421).

Almost surely, 2^111727697668 is an apocalyptic number.

It is an amenable number.

111727697668 is a deficient number, since it is larger than the sum of its proper divisors (83849855384).

111727697668 is a wasteful number, since it uses less digits than its factorization.

111727697668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726022 (or 7726020 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 61.

The spelling of 111727697668 in words is "one hundred eleven billion, seven hundred twenty-seven million, six hundred ninety-seven thousand, six hundred sixty-eight".