165212325535202 has 32 divisors (see below), whose sum is σ = 286251097452480. Its totient is φ = 70678856174080.

The previous prime is 165212325535099. The next prime is 165212325535211. The reversal of 165212325535202 is 202535523212561.

It is a happy number.

It is a super-2 number, since 2×165212325535202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226492673 + ... + 227220939.

It is an arithmetic number, because the mean of its divisors is an integer number (8945346795390).

Almost surely, 2^{165212325535202} is an apocalyptic number.

165212325535202 is a deficient number, since it is larger than the sum of its proper divisors (121038771917278).

165212325535202 is a wasteful number, since it uses less digits than its factorization.

165212325535202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334866.

The product of its (nonzero) digits is 1080000, while the sum is 44.

Adding to 165212325535202 its reverse (202535523212561), we get a palindrome (367747848747763).

The spelling of 165212325535202 in words is "one hundred sixty-five trillion, two hundred twelve billion, three hundred twenty-five million, five hundred thirty-five thousand, two hundred two".