119916665497 has 2 divisors, whose sum is σ = 119916665498. Its totient is φ = 119916665496.

The previous prime is 119916665471. The next prime is 119916665501. The reversal of 119916665497 is 794566619911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118618936921 + 1297728576 = 344411^2 + 36024^2 .

It is a cyclic number.

It is not a de Polignac number, because 119916665497 - 2²⁷ = 119782447769 is a prime.

It is not a weakly prime, because it can be changed into another prime (119916665437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59958332748 + 59958332749.

It is an arithmetic number, because the mean of its divisors is an integer number (59958332749).

Almost surely, 2^119916665497 is an apocalyptic number.

It is an amenable number.

119916665497 is a deficient number, since it is larger than the sum of its proper divisors (1).

119916665497 is an equidigital number, since it uses as much as digits as its factorization.

119916665497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22044960, while the sum is 64.

The spelling of 119916665497 in words is "one hundred nineteen billion, nine hundred sixteen million, six hundred sixty-five thousand, four hundred ninety-seven".