111624993643 has 2 divisors, whose sum is σ = 111624993644. Its totient is φ = 111624993642.

The previous prime is 111624993617. The next prime is 111624993647. The reversal of 111624993643 is 346399426111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111624993643 - 2⁹ = 111624993131 is a prime.

It is a super-2 number, since 2×111624993643² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111624993647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55812496821 + 55812496822.

It is an arithmetic number, because the mean of its divisors is an integer number (55812496822).

Almost surely, 2^111624993643 is an apocalyptic number.

111624993643 is a deficient number, since it is larger than the sum of its proper divisors (1).

111624993643 is an equidigital number, since it uses as much as digits as its factorization.

111624993643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 49.

The spelling of 111624993643 in words is "one hundred eleven billion, six hundred twenty-four million, nine hundred ninety-three thousand, six hundred forty-three".