110686661 has 2 divisors, whose sum is σ = 110686662. Its totient is φ = 110686660.

The previous prime is 110686627. The next prime is 110686669. The reversal of 110686661 is 166686011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101626561 + 9060100 = 10081^2 + 3010^2 .

It is an emirp because it is prime and its reverse (166686011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110686661 - 2¹⁴ = 110670277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110686669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55343330 + 55343331.

It is an arithmetic number, because the mean of its divisors is an integer number (55343331).

Almost surely, 2^110686661 is an apocalyptic number.

It is an amenable number.

110686661 is a deficient number, since it is larger than the sum of its proper divisors (1).

110686661 is an equidigital number, since it uses as much as digits as its factorization.

110686661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 110686661 is about 10520.7728328293. The cubic root of 110686661 is about 480.1369126223.

The spelling of 110686661 in words is "one hundred ten million, six hundred eighty-six thousand, six hundred sixty-one".