110616661 has 2 divisors, whose sum is σ = 110616662. Its totient is φ = 110616660.

The previous prime is 110616659. The next prime is 110616679. The reversal of 110616661 is 166616011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103428900 + 7187761 = 10170^2 + 2681^2 .

It is a cyclic number.

It is not a de Polignac number, because 110616661 - 2¹ = 110616659 is a prime.

Together with 110616659, 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 (110616601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55308330 + 55308331.

It is an arithmetic number, because the mean of its divisors is an integer number (55308331).

Almost surely, 2^110616661 is an apocalyptic number.

It is an amenable number.

110616661 is a deficient number, since it is larger than the sum of its proper divisors (1).

110616661 is an equidigital number, since it uses as much as digits as its factorization.

110616661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 110616661 is about 10517.4455548864. The cubic root of 110616661 is about 480.0356758784.

The spelling of 110616661 in words is "one hundred ten million, six hundred sixteen thousand, six hundred sixty-one".