165024022331 has 16 divisors (see below), whose sum is σ = 189229928448. Its totient is φ = 140976158400.

The previous prime is 165024022313. The next prime is 165024022337. The reversal of 165024022331 is 133220420561.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-165024022331 is a prime.

It is a super-2 number, since 2×165024022331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165024022294 and 165024022303.

It is not an unprimeable number, because it can be changed into a prime (165024022337) 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, 8500646 + ... + 8520036.

It is an arithmetic number, because the mean of its divisors is an integer number (11826870528).

Almost surely, 2^165024022331 is an apocalyptic number.

165024022331 is a deficient number, since it is larger than the sum of its proper divisors (24205906117).

165024022331 is a wasteful number, since it uses less digits than its factorization.

165024022331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23402.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 165024022331 its reverse (133220420561), we get a palindrome (298244442892).

The spelling of 165024022331 in words is "one hundred sixty-five billion, twenty-four million, twenty-two thousand, three hundred thirty-one".