165033215149 has 12 divisors (see below), whose sum is σ = 181714607452. Its totient is φ = 149770114560.

The previous prime is 165033215119. The next prime is 165033215159. The reversal of 165033215149 is 941512330561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 142040041924 + 22993173225 = 376882^2 + 151635^2 .

It is not a de Polignac number, because 165033215149 - 2¹⁵ = 165033182381 is a prime.

It is a super-2 number, since 2×165033215149² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165033215119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1112082 + ... + 1251715.

Almost surely, 2^165033215149 is an apocalyptic number.

It is an amenable number.

165033215149 is a deficient number, since it is larger than the sum of its proper divisors (16681392303).

165033215149 is a wasteful number, since it uses less digits than its factorization.

165033215149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364396 (or 2364385 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 165033215149 in words is "one hundred sixty-five billion, thirty-three million, two hundred fifteen thousand, one hundred forty-nine".