111660204413 has 2 divisors, whose sum is σ = 111660204414. Its totient is φ = 111660204412.

The previous prime is 111660204391. The next prime is 111660204499. The reversal of 111660204413 is 314402066111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56929005604 + 54731198809 = 238598^2 + 233947^2 .

It is a cyclic number.

It is not a de Polignac number, because 111660204413 - 2⁸ = 111660204157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111660204013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55830102206 + 55830102207.

It is an arithmetic number, because the mean of its divisors is an integer number (55830102207).

Almost surely, 2^111660204413 is an apocalyptic number.

It is an amenable number.

111660204413 is a deficient number, since it is larger than the sum of its proper divisors (1).

111660204413 is an equidigital number, since it uses as much as digits as its factorization.

111660204413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 111660204413 in words is "one hundred eleven billion, six hundred sixty million, two hundred four thousand, four hundred thirteen".