118691663033 has 2 divisors, whose sum is σ = 118691663034. Its totient is φ = 118691663032.

The previous prime is 118691663011. The next prime is 118691663131. The reversal of 118691663033 is 330366196811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71388892969 + 47302770064 = 267187^2 + 217492^2 .

It is a cyclic number.

It is not a de Polignac number, because 118691663033 - 2¹² = 118691658937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (118691623033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59345831516 + 59345831517.

It is an arithmetic number, because the mean of its divisors is an integer number (59345831517).

Almost surely, 2^118691663033 is an apocalyptic number.

It is an amenable number.

118691663033 is a deficient number, since it is larger than the sum of its proper divisors (1).

118691663033 is an equidigital number, since it uses as much as digits as its factorization.

118691663033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 118691663033 in words is "one hundred eighteen billion, six hundred ninety-one million, six hundred sixty-three thousand, thirty-three".