118391433163 has 4 divisors (see below), whose sum is σ = 118444359600. Its totient is φ = 118338506728.

The previous prime is 118391433113. The next prime is 118391433179. The reversal of 118391433163 is 361334193811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361334193811 = 399173 ⋅905207.

It is a cyclic number.

It is not a de Polignac number, because 118391433163 - 2²¹ = 118389336011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118391433113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26459863 + ... + 26464336.

It is an arithmetic number, because the mean of its divisors is an integer number (29611089900).

Almost surely, 2^118391433163 is an apocalyptic number.

118391433163 is a deficient number, since it is larger than the sum of its proper divisors (52926437).

118391433163 is an equidigital number, since it uses as much as digits as its factorization.

118391433163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52926436.

The product of its digits is 139968, while the sum is 43.

The spelling of 118391433163 in words is "one hundred eighteen billion, three hundred ninety-one million, four hundred thirty-three thousand, one hundred sixty-three".