116808505777 has 2 divisors, whose sum is σ = 116808505778. Its totient is φ = 116808505776.

The previous prime is 116808505771. The next prime is 116808505811. The reversal of 116808505777 is 777505808611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71352560161 + 45455945616 = 267119^2 + 213204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116808505777 is a prime.

It is not a weakly prime, because it can be changed into another prime (116808505771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58404252888 + 58404252889.

It is an arithmetic number, because the mean of its divisors is an integer number (58404252889).

Almost surely, 2^116808505777 is an apocalyptic number.

It is an amenable number.

116808505777 is a deficient number, since it is larger than the sum of its proper divisors (1).

116808505777 is an equidigital number, since it uses as much as digits as its factorization.

116808505777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3292800, while the sum is 55.

The spelling of 116808505777 in words is "one hundred sixteen billion, eight hundred eight million, five hundred five thousand, seven hundred seventy-seven".