116565649 has 2 divisors, whose sum is σ = 116565650. Its totient is φ = 116565648.

The previous prime is 116565641. The next prime is 116565677. The reversal of 116565649 is 946565611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72250000 + 44315649 = 8500^2 + 6657^2 .

It is a cyclic number.

It is not a de Polignac number, because 116565649 - 2³ = 116565641 is a prime.

It is not a weakly prime, because it can be changed into another prime (116565641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58282824 + 58282825.

It is an arithmetic number, because the mean of its divisors is an integer number (58282825).

Almost surely, 2^116565649 is an apocalyptic number.

It is an amenable number.

116565649 is a deficient number, since it is larger than the sum of its proper divisors (1).

116565649 is an equidigital number, since it uses as much as digits as its factorization.

116565649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 116565649 is about 10796.5572753540. The cubic root of 116565649 is about 488.4913322206.

The spelling of 116565649 in words is "one hundred sixteen million, five hundred sixty-five thousand, six hundred forty-nine".