111055665629 has 2 divisors, whose sum is σ = 111055665630. Its totient is φ = 111055665628.

The previous prime is 111055665607. The next prime is 111055665631. The reversal of 111055665629 is 926566550111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92121355225 + 18934310404 = 303515^2 + 137602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111055665629 is a prime.

Together with 111055665631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111052665629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55527832814 + 55527832815.

It is an arithmetic number, because the mean of its divisors is an integer number (55527832815).

Almost surely, 2^111055665629 is an apocalyptic number.

It is an amenable number.

111055665629 is a deficient number, since it is larger than the sum of its proper divisors (1).

111055665629 is an equidigital number, since it uses as much as digits as its factorization.

111055665629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 47.

The spelling of 111055665629 in words is "one hundred eleven billion, fifty-five million, six hundred sixty-five thousand, six hundred twenty-nine".