165045636660360 has 128 divisors (see below), whose sum is σ = 503677906300800. Its totient is φ = 43254185871360.

The previous prime is 165045636660329. The next prime is 165045636660491. The reversal of 165045636660360 is 63066636540561.

It is a happy number.

165045636660360 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165045636660360.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 808725 + ... + 18186404.

It is an arithmetic number, because the mean of its divisors is an integer number (3934983642975).

Almost surely, 2^{165045636660360} is an apocalyptic number.

165045636660360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165045636660360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251838953150400).

165045636660360 is an abundant number, since it is smaller than the sum of its proper divisors (338632269640440).

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

165045636660360 is a wasteful number, since it uses less digits than its factorization.

165045636660360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18996391 (or 18996387 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 57.

The spelling of 165045636660360 in words is "one hundred sixty-five trillion, forty-five billion, six hundred thirty-six million, six hundred sixty thousand, three hundred sixty".