188145910544 has 20 divisors (see below), whose sum is σ = 365565383196. Its totient is φ = 93806456832.

The previous prime is 188145910543. The next prime is 188145910549. The reversal of 188145910544 is 445019541881.

It is a happy number.

188145910544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 92788470544 + 95357440000 = 304612^2 + 308800^2 .

It is a junction number, because it is equal to n+sod(n) for n = 188145910492 and 188145910501.

It is not an unprimeable number, because it can be changed into a prime (188145910541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16650329 + ... + 16661624.

Almost surely, 2^188145910544 is an apocalyptic number.

It is an amenable number.

188145910544 is a deficient number, since it is larger than the sum of its proper divisors (177419472652).

188145910544 is a wasteful number, since it uses less digits than its factorization.

188145910544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33312314 (or 33312308 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 50.

The spelling of 188145910544 in words is "one hundred eighty-eight billion, one hundred forty-five million, nine hundred ten thousand, five hundred forty-four".