116178817 has 2 divisors, whose sum is σ = 116178818. Its totient is φ = 116178816.

The previous prime is 116178767. The next prime is 116178851. The reversal of 116178817 is 718871611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110754576 + 5424241 = 10524^2 + 2329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116178817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116178817.

It is not a weakly prime, because it can be changed into another prime (116173817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58089408 + 58089409.

It is an arithmetic number, because the mean of its divisors is an integer number (58089409).

Almost surely, 2^116178817 is an apocalyptic number.

It is an amenable number.

116178817 is a deficient number, since it is larger than the sum of its proper divisors (1).

116178817 is an equidigital number, since it uses as much as digits as its factorization.

116178817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 40.

The square root of 116178817 is about 10778.6277883597. The cubic root of 116178817 is about 487.9503681160.

The spelling of 116178817 in words is "one hundred sixteen million, one hundred seventy-eight thousand, eight hundred seventeen".