188816061 has 24 divisors (see below), whose sum is σ = 299099520. Its totient is φ = 105595392.

The previous prime is 188816057. The next prime is 188816087. The reversal of 188816061 is 160618881.

188816061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 188816061 - 2² = 188816057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188816041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6756 + ... + 20573.

It is an arithmetic number, because the mean of its divisors is an integer number (12462480).

Almost surely, 2^188816061 is an apocalyptic number.

It is an amenable number.

188816061 is a deficient number, since it is larger than the sum of its proper divisors (110283459).

188816061 is a wasteful number, since it uses less digits than its factorization.

188816061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27393 (or 27386 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 188816061 is about 13741.0356596583. The cubic root of 188816061 is about 573.6931236902.

It can be divided in two parts, 18881 and 6061, that added together give a palindrome (24942).

The spelling of 188816061 in words is "one hundred eighty-eight million, eight hundred sixteen thousand, sixty-one".