116666663 has 2 divisors, whose sum is σ = 116666664. Its totient is φ = 116666662.

The previous prime is 116666657. The next prime is 116666713. The reversal of 116666663 is 366666611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116666663 - 2¹⁴ = 116650279 is a prime.

It is a super-2 number, since 2×116666663² = 27222220511111138, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116666663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116666863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58333331 + 58333332.

It is an arithmetic number, because the mean of its divisors is an integer number (58333332).

Almost surely, 2^116666663 is an apocalyptic number.

116666663 is a deficient number, since it is larger than the sum of its proper divisors (1).

116666663 is an equidigital number, since it uses as much as digits as its factorization.

116666663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 41.

The square root of 116666663 is about 10801.2343276127. The cubic root of 116666663 is about 488.6323978404.

The spelling of 116666663 in words is "one hundred sixteen million, six hundred sixty-six thousand, six hundred sixty-three".