111681117874 has 8 divisors (see below), whose sum is σ = 177375893148. Its totient is φ = 52555820160.

The previous prime is 111681117853. The next prime is 111681117881. The reversal of 111681117874 is 478711186111.

It can be written as a sum of positive squares in 2 ways, for example, as 108838628649 + 2842489225 = 329907^2 + 53315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642369347 + ... + 1642369414.

Almost surely, 2^111681117874 is an apocalyptic number.

111681117874 is a deficient number, since it is larger than the sum of its proper divisors (65694775274).

111681117874 is a wasteful number, since it uses less digits than its factorization.

111681117874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284738780.

The product of its digits is 75264, while the sum is 46.

The spelling of 111681117874 in words is "one hundred eleven billion, six hundred eighty-one million, one hundred seventeen thousand, eight hundred seventy-four".