55189232165 has 8 divisors (see below), whose sum is σ = 66238840320. Its totient is φ = 44143544592.

The previous prime is 55189232149. The next prime is 55189232173. The reversal of 55189232165 is 56123298155.

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 55189232165 - 2⁴ = 55189232149 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 949085 + ... + 1005554.

It is an arithmetic number, because the mean of its divisors is an integer number (8279855040).

Almost surely, 2^55189232165 is an apocalyptic number.

It is an amenable number.

55189232165 is a deficient number, since it is larger than the sum of its proper divisors (11049608155).

55189232165 is a wasteful number, since it uses less digits than its factorization.

55189232165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960291.

The product of its digits is 648000, while the sum is 47.

The spelling of 55189232165 in words is "fifty-five billion, one hundred eighty-nine million, two hundred thirty-two thousand, one hundred sixty-five".