111500555563 has 2 divisors, whose sum is σ = 111500555564. Its totient is φ = 111500555562.

The previous prime is 111500555561. The next prime is 111500555629. The reversal of 111500555563 is 365555005111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111500555563 - 2¹ = 111500555561 is a prime.

Together with 111500555561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111500555561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55750277781 + 55750277782.

It is an arithmetic number, because the mean of its divisors is an integer number (55750277782).

Almost surely, 2^111500555563 is an apocalyptic number.

111500555563 is a deficient number, since it is larger than the sum of its proper divisors (1).

111500555563 is an equidigital number, since it uses as much as digits as its factorization.

111500555563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56250, while the sum is 37.

The spelling of 111500555563 in words is "one hundred eleven billion, five hundred million, five hundred fifty-five thousand, five hundred sixty-three".