11854987166 has 8 divisors (see below), whose sum is σ = 19399069944. Its totient is φ = 5388630520.

The previous prime is 11854987147. The next prime is 11854987181. The reversal of 11854987166 is 66178945811.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269431505 + ... + 269431548.

It is an arithmetic number, because the mean of its divisors is an integer number (2424883743).

Almost surely, 2^11854987166 is an apocalyptic number.

11854987166 is a deficient number, since it is larger than the sum of its proper divisors (7544082778).

11854987166 is a wasteful number, since it uses less digits than its factorization.

11854987166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538863066.

The product of its digits is 2903040, while the sum is 56.

The spelling of 11854987166 in words is "eleven billion, eight hundred fifty-four million, nine hundred eighty-seven thousand, one hundred sixty-six".