165989130366 has 16 divisors (see below), whose sum is σ = 333897212304. Its totient is φ = 55009884864.

The previous prime is 165989130337. The next prime is 165989130443. The reversal of 165989130366 is 663031989561.

It is a happy number.

165989130366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 79955191 + ... + 79957266.

It is an arithmetic number, because the mean of its divisors is an integer number (20868575769).

Almost surely, 2^165989130366 is an apocalyptic number.

165989130366 is an abundant number, since it is smaller than the sum of its proper divisors (167908081938).

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

165989130366 is a wasteful number, since it uses less digits than its factorization.

165989130366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159912635.

The product of its (nonzero) digits is 6298560, while the sum is 57.

The spelling of 165989130366 in words is "one hundred sixty-five billion, nine hundred eighty-nine million, one hundred thirty thousand, three hundred sixty-six".