189320208516 has 36 divisors (see below), whose sum is σ = 478697764272. Its totient is φ = 63088492464.

The previous prime is 189320208509. The next prime is 189320208551. The reversal of 189320208516 is 615802023981.

189320208516 is a `hidden beast` number, since 1 + 8 + 93 + 20 + 20 + 8 + 516 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 633610 + ... + 883233.

Almost surely, 2^189320208516 is an apocalyptic number.

It is an amenable number.

189320208516 is an abundant number, since it is smaller than the sum of its proper divisors (289377555756).

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

189320208516 is a wasteful number, since it uses less digits than its factorization.

189320208516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520320 (or 1520315 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 189320208516 in words is "one hundred eighty-nine billion, three hundred twenty million, two hundred eight thousand, five hundred sixteen".