11689945158 has 16 divisors (see below), whose sum is σ = 23382567936. Its totient is φ = 3896202120.

The previous prime is 11689945121. The next prime is 11689945193. The reversal of 11689945158 is 85154998611.

It is a junction number, because it is equal to n+sod(n) for n = 11689945098 and 11689945107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52398 + ... + 161633.

It is an arithmetic number, because the mean of its divisors is an integer number (1461410496).

Almost surely, 2^11689945158 is an apocalyptic number.

11689945158 is an abundant number, since it is smaller than the sum of its proper divisors (11692622778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11689945158 is a wasteful number, since it uses less digits than its factorization.

11689945158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223139.

The product of its digits is 3110400, while the sum is 57.

The spelling of 11689945158 in words is "eleven billion, six hundred eighty-nine million, nine hundred forty-five thousand, one hundred fifty-eight".