116223399991 has 2 divisors, whose sum is σ = 116223399992. Its totient is φ = 116223399990.

The previous prime is 116223399977. The next prime is 116223400063. The reversal of 116223399991 is 199993322611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116223399991 - 2²¹ = 116221302839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116223399191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58111699995 + 58111699996.

It is an arithmetic number, because the mean of its divisors is an integer number (58111699996).

Almost surely, 2^116223399991 is an apocalyptic number.

116223399991 is a deficient number, since it is larger than the sum of its proper divisors (1).

116223399991 is an equidigital number, since it uses as much as digits as its factorization.

116223399991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1417176, while the sum is 55.

The spelling of 116223399991 in words is "one hundred sixteen billion, two hundred twenty-three million, three hundred ninety-nine thousand, nine hundred ninety-one".