65165622 has 16 divisors (see below), whose sum is σ = 131796720. Its totient is φ = 21477632.

The previous prime is 65165609. The next prime is 65165623. The reversal of 65165622 is 22656156.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65165623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60483 + ... + 61550.

It is an arithmetic number, because the mean of its divisors is an integer number (8237295).

Almost surely, 2^65165622 is an apocalyptic number.

65165622 is an abundant number, since it is smaller than the sum of its proper divisors (66631098).

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

65165622 is a wasteful number, since it uses less digits than its factorization.

65165622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122127.

The product of its digits is 21600, while the sum is 33.

The square root of 65165622 is about 8072.5226540407. The cubic root of 65165622 is about 402.4137839848.

The spelling of 65165622 in words is "sixty-five million, one hundred sixty-five thousand, six hundred twenty-two".