165210346664202 has 128 divisors (see below), whose sum is σ = 387232579565568. Its totient is φ = 46006626758400.

The previous prime is 165210346664081. The next prime is 165210346664203. The reversal of 165210346664202 is 202466643012561.

It is not an unprimeable number, because it can be changed into a prime (165210346664203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1942214752 + ... + 1942299812.

It is an arithmetic number, because the mean of its divisors is an integer number (3025254527856).

Almost surely, 2^{165210346664202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165210346664202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193616289782784).

165210346664202 is an abundant number, since it is smaller than the sum of its proper divisors (222022232901366).

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

165210346664202 is a wasteful number, since it uses less digits than its factorization.

165210346664202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87404.

The product of its (nonzero) digits is 2488320, while the sum is 48.

Adding to 165210346664202 its reverse (202466643012561), we get a palindrome (367676989676763).

The spelling of 165210346664202 in words is "one hundred sixty-five trillion, two hundred ten billion, three hundred forty-six million, six hundred sixty-four thousand, two hundred two".