116269661 has 2 divisors, whose sum is σ = 116269662. Its totient is φ = 116269660.

The previous prime is 116269649. The next prime is 116269663. The reversal of 116269661 is 166962611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114618436 + 1651225 = 10706^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 116269661 - 2¹⁰ = 116268637 is a prime.

It is a Sophie Germain prime.

Together with 116269663, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116269663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58134830 + 58134831.

It is an arithmetic number, because the mean of its divisors is an integer number (58134831).

Almost surely, 2^116269661 is an apocalyptic number.

It is an amenable number.

116269661 is a deficient number, since it is larger than the sum of its proper divisors (1).

116269661 is an equidigital number, since it uses as much as digits as its factorization.

116269661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 116269661 is about 10782.8410449195. The cubic root of 116269661 is about 488.0775164084.

The spelling of 116269661 in words is "one hundred sixteen million, two hundred sixty-nine thousand, six hundred sixty-one".