111667227839 has 4 divisors (see below), whose sum is σ = 111667898760. Its totient is φ = 111666556920.

The previous prime is 111667227797. The next prime is 111667227851. The reversal of 111667227839 is 938722766111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 938722766111 = 13 ⋅72209443547.

It is a cyclic number.

It is not a de Polignac number, because 111667227839 - 2⁸ = 111667227583 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 (111607227839) 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, 123584 + ... + 488474.

It is an arithmetic number, because the mean of its divisors is an integer number (27916974690).

Almost surely, 2^111667227839 is an apocalyptic number.

111667227839 is a deficient number, since it is larger than the sum of its proper divisors (670921).

111667227839 is an equidigital number, since it uses as much as digits as its factorization.

111667227839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670920.

The product of its digits is 1524096, while the sum is 53.

The spelling of 111667227839 in words is "one hundred eleven billion, six hundred sixty-seven million, two hundred twenty-seven thousand, eight hundred thirty-nine".