111660653459 has 2 divisors, whose sum is σ = 111660653460. Its totient is φ = 111660653458.

The previous prime is 111660653431. The next prime is 111660653471. The reversal of 111660653459 is 954356066111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111660653459 - 2³² = 107365686163 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (111660655459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55830326729 + 55830326730.

It is an arithmetic number, because the mean of its divisors is an integer number (55830326730).

Almost surely, 2^111660653459 is an apocalyptic number.

111660653459 is a deficient number, since it is larger than the sum of its proper divisors (1).

111660653459 is an equidigital number, since it uses as much as digits as its factorization.

111660653459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 111660653459 in words is "one hundred eleven billion, six hundred sixty million, six hundred fifty-three thousand, four hundred fifty-nine".