165153203131 has 32 divisors (see below), whose sum is σ = 205615872000. Its totient is φ = 129431820672.

The previous prime is 165153203119. The next prime is 165153203153. The reversal of 165153203131 is 131302351561.

It is not a de Polignac number, because 165153203131 - 2¹⁷ = 165153072059 is a prime.

It is a super-2 number, since 2×165153203131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165153203093 and 165153203102.

It is not an unprimeable number, because it can be changed into a prime (165153203191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11282125 + ... + 11296753.

It is an arithmetic number, because the mean of its divisors is an integer number (6425496000).

Almost surely, 2^165153203131 is an apocalyptic number.

165153203131 is a deficient number, since it is larger than the sum of its proper divisors (40462668869).

165153203131 is a wasteful number, since it uses less digits than its factorization.

165153203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17611.

The product of its (nonzero) digits is 8100, while the sum is 31.

Adding to 165153203131 its reverse (131302351561), we get a palindrome (296455554692).

The spelling of 165153203131 in words is "one hundred sixty-five billion, one hundred fifty-three million, two hundred three thousand, one hundred thirty-one".