189220230166 has 16 divisors (see below), whose sum is σ = 315475239888. Its totient is φ = 84386380000.

The previous prime is 189220230163. The next prime is 189220230181. The reversal of 189220230166 is 661032022981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189220230163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81139585 + ... + 81141916.

It is an arithmetic number, because the mean of its divisors is an integer number (19717202493).

Almost surely, 2^189220230166 is an apocalyptic number.

189220230166 is a deficient number, since it is larger than the sum of its proper divisors (126255009722).

189220230166 is a wasteful number, since it uses less digits than its factorization.

189220230166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162281567.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 189220230166 in words is "one hundred eighty-nine billion, two hundred twenty million, two hundred thirty thousand, one hundred sixty-six".