165133512522 has 96 divisors (see below), whose sum is σ = 403793118144. Its totient is φ = 48332332800.

The previous prime is 165133512473. The next prime is 165133512529. The reversal of 165133512522 is 225215331561.

165133512522 is a `hidden beast` number, since 1 + 6 + 5 + 133 + 512 + 5 + 2 + 2 = 666.

165133512522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (165133512529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 921397 + ... + 1085927.

It is an arithmetic number, because the mean of its divisors is an integer number (4206178314).

Almost surely, 2^165133512522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165133512522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201896559072).

165133512522 is an abundant number, since it is smaller than the sum of its proper divisors (238659605622).

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

165133512522 is a wasteful number, since it uses less digits than its factorization.

165133512522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164724 (or 164721 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The spelling of 165133512522 in words is "one hundred sixty-five billion, one hundred thirty-three million, five hundred twelve thousand, five hundred twenty-two".