117994156697 has 2 divisors, whose sum is σ = 117994156698. Its totient is φ = 117994156696.

The previous prime is 117994156673. The next prime is 117994156747. The reversal of 117994156697 is 796651499711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115738761616 + 2255395081 = 340204^2 + 47491^2 .

It is a cyclic number.

It is not a de Polignac number, because 117994156697 - 2⁶ = 117994156633 is a prime.

It is not a weakly prime, because it can be changed into another prime (117994156607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58997078348 + 58997078349.

It is an arithmetic number, because the mean of its divisors is an integer number (58997078349).

Almost surely, 2^117994156697 is an apocalyptic number.

It is an amenable number.

117994156697 is a deficient number, since it is larger than the sum of its proper divisors (1).

117994156697 is an equidigital number, since it uses as much as digits as its factorization.

117994156697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25719120, while the sum is 65.

The spelling of 117994156697 in words is "one hundred seventeen billion, nine hundred ninety-four million, one hundred fifty-six thousand, six hundred ninety-seven".