118771242166 has 4 divisors (see below), whose sum is σ = 178156863252. Its totient is φ = 59385621082.

The previous prime is 118771242157. The next prime is 118771242167. The reversal of 118771242166 is 661242177811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118771242167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29692810540 + ... + 29692810543.

It is an arithmetic number, because the mean of its divisors is an integer number (44539215813).

Almost surely, 2^118771242166 is an apocalyptic number.

118771242166 is a deficient number, since it is larger than the sum of its proper divisors (59385621086).

118771242166 is an equidigital number, since it uses as much as digits as its factorization.

118771242166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59385621085.

The product of its digits is 225792, while the sum is 46.

The spelling of 118771242166 in words is "one hundred eighteen billion, seven hundred seventy-one million, two hundred forty-two thousand, one hundred sixty-six".