111363666889 has 2 divisors, whose sum is σ = 111363666890. Its totient is φ = 111363666888.

The previous prime is 111363666839. The next prime is 111363666901. The reversal of 111363666889 is 988666363111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59178833289 + 52184833600 = 243267^2 + 228440^2 .

It is a cyclic number.

It is not a de Polignac number, because 111363666889 - 2¹⁵ = 111363634121 is a prime.

It is not a weakly prime, because it can be changed into another prime (111363666809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55681833444 + 55681833445.

It is an arithmetic number, because the mean of its divisors is an integer number (55681833445).

Almost surely, 2^111363666889 is an apocalyptic number.

It is an amenable number.

111363666889 is a deficient number, since it is larger than the sum of its proper divisors (1).

111363666889 is an equidigital number, since it uses as much as digits as its factorization.

111363666889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6718464, while the sum is 58.

The spelling of 111363666889 in words is "one hundred eleven billion, three hundred sixty-three million, six hundred sixty-six thousand, eight hundred eighty-nine".