110660621 has 2 divisors, whose sum is σ = 110660622. Its totient is φ = 110660620.

The previous prime is 110660611. The next prime is 110660623. The reversal of 110660621 is 126066011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69122596 + 41538025 = 8314^2 + 6445^2 .

It is a cyclic number.

It is not a de Polignac number, because 110660621 - 2²⁶ = 43551757 is a prime.

Together with 110660623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110660623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55330310 + 55330311.

It is an arithmetic number, because the mean of its divisors is an integer number (55330311).

Almost surely, 2^110660621 is an apocalyptic number.

It is an amenable number.

110660621 is a deficient number, since it is larger than the sum of its proper divisors (1).

110660621 is an equidigital number, since it uses as much as digits as its factorization.

110660621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 110660621 is about 10519.5352083635. The cubic root of 110660621 is about 480.0992575406.

The spelling of 110660621 in words is "one hundred ten million, six hundred sixty thousand, six hundred twenty-one".