165151521022422 has 32 divisors (see below), whose sum is σ = 360383887753344. Its totient is φ = 50038513179200.

The previous prime is 165151521022421. The next prime is 165151521022427. The reversal of 165151521022422 is 224220125151561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165151521022421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184607448 + ... + 185499899.

It is an arithmetic number, because the mean of its divisors is an integer number (11261996492292).

Almost surely, 2^{165151521022422} is an apocalyptic number.

165151521022422 is an abundant number, since it is smaller than the sum of its proper divisors (195232366730922).

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

165151521022422 is a wasteful number, since it uses less digits than its factorization.

165151521022422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370114124.

The product of its (nonzero) digits is 96000, while the sum is 39.

Adding to 165151521022422 its reverse (224220125151561), we get a palindrome (389371646173983).

The spelling of 165151521022422 in words is "one hundred sixty-five trillion, one hundred fifty-one billion, five hundred twenty-one million, twenty-two thousand, four hundred twenty-two".