118018669 has 8 divisors (see below), whose sum is σ = 119296440. Its totient is φ = 116745216.

The previous prime is 118018657. The next prime is 118018699. The reversal of 118018669 is 966810811.

It can be written as a sum of positive squares in 4 ways, for example, as 11309769 + 106708900 = 3363^2 + 10330^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118018669 - 2⁹ = 118018157 is a prime.

It is a super-2 number, since 2×118018669² = 27856812465063122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118018619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109867 + ... + 110935.

It is an arithmetic number, because the mean of its divisors is an integer number (14912055).

Almost surely, 2^118018669 is an apocalyptic number.

It is an amenable number.

118018669 is a deficient number, since it is larger than the sum of its proper divisors (1277771).

118018669 is a wasteful number, since it uses less digits than its factorization.

118018669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 118018669 is about 10863.6397675917. The cubic root of 118018669 is about 490.5126787328.

The spelling of 118018669 in words is "one hundred eighteen million, eighteen thousand, six hundred sixty-nine".