189669616 has 20 divisors (see below), whose sum is σ = 374420232. Its totient is φ = 93045056.

The previous prime is 189669589. The next prime is 189669619. The reversal of 189669616 is 616966981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189669619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110986 + ... + 112681.

Almost surely, 2^189669616 is an apocalyptic number.

189669616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189669616 is a deficient number, since it is larger than the sum of its proper divisors (184750616).

189669616 is a wasteful number, since it uses less digits than its factorization.

189669616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223728 (or 223722 counting only the distinct ones).

The product of its digits is 839808, while the sum is 52.

The square root of 189669616 is about 13772.0592505260. The cubic root of 189669616 is about 574.5562963898.

It can be divided in two parts, 18966 and 9616, that added together give a palindrome (28582).

The spelling of 189669616 in words is "one hundred eighty-nine million, six hundred sixty-nine thousand, six hundred sixteen".