116121503816789 has 2 divisors, whose sum is σ = 116121503816790. Its totient is φ = 116121503816788.

The previous prime is 116121503816777. The next prime is 116121503816831. The reversal of 116121503816789 is 987618305121611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68627008676164 + 47494495140625 = 8284142^2 + 6891625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116121503816789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116120503816789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58060751908394 + 58060751908395.

It is an arithmetic number, because the mean of its divisors is an integer number (58060751908395).

Almost surely, 2^{116121503816789} is an apocalyptic number.

It is an amenable number.

116121503816789 is a deficient number, since it is larger than the sum of its proper divisors (1).

116121503816789 is an equidigital number, since it uses as much as digits as its factorization.

116121503816789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 59.

The spelling of 116121503816789 in words is "one hundred sixteen trillion, one hundred twenty-one billion, five hundred three million, eight hundred sixteen thousand, seven hundred eighty-nine".