55189232166 has 8 divisors (see below), whose sum is σ = 110378464344. Its totient is φ = 18396410720.

The previous prime is 55189232149. The next prime is 55189232173. The reversal of 55189232166 is 66123298155.

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

55189232166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4599102675 + ... + 4599102686.

It is an arithmetic number, because the mean of its divisors is an integer number (13797308043).

Almost surely, 2^55189232166 is an apocalyptic number.

55189232166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55189232166 is a wasteful number, since it uses less digits than its factorization.

55189232166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9198205366.

The product of its digits is 777600, while the sum is 48.

The spelling of 55189232166 in words is "fifty-five billion, one hundred eighty-nine million, two hundred thirty-two thousand, one hundred sixty-six".