111616156667 has 4 divisors (see below), whose sum is σ = 112095196200. Its totient is φ = 111137117136.

The previous prime is 111616156651. The next prime is 111616156703. The reversal of 111616156667 is 766651616111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766651616111 = 47 ⋅16311736513.

It is a cyclic number.

It is not a de Polignac number, because 111616156667 - 2⁴ = 111616156651 is a prime.

It is a super-2 number, since 2×111616156667² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111616156637) 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, 239519417 + ... + 239519882.

It is an arithmetic number, because the mean of its divisors is an integer number (28023799050).

Almost surely, 2^111616156667 is an apocalyptic number.

111616156667 is a deficient number, since it is larger than the sum of its proper divisors (479039533).

111616156667 is an equidigital number, since it uses as much as digits as its factorization.

111616156667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479039532.

The product of its digits is 272160, while the sum is 47.

The spelling of 111616156667 in words is "one hundred eleven billion, six hundred sixteen million, one hundred fifty-six thousand, six hundred sixty-seven".