165225222452616 has 16 divisors (see below), whose sum is σ = 413063056131600. Its totient is φ = 55075074150864.

The previous prime is 165225222452611. The next prime is 165225222452629. The reversal of 165225222452616 is 616254222522561.

It is not an unprimeable number, because it can be changed into a prime (165225222452611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3442192134406 + ... + 3442192134453.

It is an arithmetic number, because the mean of its divisors is an integer number (25816441008225).

Almost surely, 2^{165225222452616} is an apocalyptic number.

It is an amenable number.

165225222452616 is an abundant number, since it is smaller than the sum of its proper divisors (247837833678984).

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

165225222452616 is a wasteful number, since it uses less digits than its factorization.

165225222452616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6884384268868 (or 6884384268864 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 51.

The spelling of 165225222452616 in words is "one hundred sixty-five trillion, two hundred twenty-five billion, two hundred twenty-two million, four hundred fifty-two thousand, six hundred sixteen".