111616156651 has 2 divisors, whose sum is σ = 111616156652. Its totient is φ = 111616156650.

The previous prime is 111616156649. The next prime is 111616156703. The reversal of 111616156651 is 156651616111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111616156651 - 2¹ = 111616156649 is a prime.

Together with 111616156649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111616159651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55808078325 + 55808078326.

It is an arithmetic number, because the mean of its divisors is an integer number (55808078326).

Almost surely, 2^111616156651 is an apocalyptic number.

111616156651 is a deficient number, since it is larger than the sum of its proper divisors (1).

111616156651 is an equidigital number, since it uses as much as digits as its factorization.

111616156651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 40.

The spelling of 111616156651 in words is "one hundred eleven billion, six hundred sixteen million, one hundred fifty-six thousand, six hundred fifty-one".