189110016 has 108 divisors (see below), whose sum is σ = 549243240. Its totient is φ = 62576640.

The previous prime is 189110003. The next prime is 189110017. The reversal of 189110016 is 610011981.

189110016 = 334² + 335² + ... + 845².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189110017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485950 + ... + 486338.

Almost surely, 2^189110016 is an apocalyptic number.

189110016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189110016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274621620).

189110016 is an abundant number, since it is smaller than the sum of its proper divisors (360133224).

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

189110016 is a wasteful number, since it uses less digits than its factorization.

189110016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 189110016 is about 13751.7277459961. The cubic root of 189110016 is about 573.9906840463.

Adding to 189110016 its reverse (610011981), we get a palindrome (799121997).

The spelling of 189110016 in words is "one hundred eighty-nine million, one hundred ten thousand, sixteen".