111640252267 has 2 divisors, whose sum is σ = 111640252268. Its totient is φ = 111640252266.

The previous prime is 111640252261. The next prime is 111640252301. The reversal of 111640252267 is 762252046111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111640252267 - 2¹¹ = 111640250219 is a prime.

It is not a weakly prime, because it can be changed into another prime (111640252261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55820126133 + 55820126134.

It is an arithmetic number, because the mean of its divisors is an integer number (55820126134).

Almost surely, 2^111640252267 is an apocalyptic number.

111640252267 is a deficient number, since it is larger than the sum of its proper divisors (1).

111640252267 is an equidigital number, since it uses as much as digits as its factorization.

111640252267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 111640252267 its reverse (762252046111), we get a palindrome (873892298378).

The spelling of 111640252267 in words is "one hundred eleven billion, six hundred forty million, two hundred fifty-two thousand, two hundred sixty-seven".