135166224231 has 16 divisors (see below), whose sum is σ = 200277189600. Its totient is φ = 90096897024.

The previous prime is 135166224203. The next prime is 135166224233. The reversal of 135166224231 is 132422661531.

135166224231 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 6 + 622 + 4 + 23 + 1 = 666.

It is not a de Polignac number, because 135166224231 - 2¹⁰ = 135166223207 is a prime.

It is a super-2 number, since 2×135166224231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135166224233) 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, 207096 + ... + 559661.

It is an arithmetic number, because the mean of its divisors is an integer number (12517324350).

Almost surely, 2^135166224231 is an apocalyptic number.

135166224231 is a deficient number, since it is larger than the sum of its proper divisors (65110965369).

135166224231 is an equidigital number, since it uses as much as digits as its factorization.

135166224231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773295 (or 773289 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

Adding to 135166224231 its reverse (132422661531), we get a palindrome (267588885762).

The spelling of 135166224231 in words is "one hundred thirty-five billion, one hundred sixty-six million, two hundred twenty-four thousand, two hundred thirty-one".