156322263231 has 8 divisors (see below), whose sum is σ = 231588538160. Its totient is φ = 104214842136.

The previous prime is 156322263211. The next prime is 156322263257. The reversal of 156322263231 is 132362223651.

156322263231 is a `hidden beast` number, since 1 + 5 + 6 + 322 + 2 + 6 + 323 + 1 = 666.

It is not a de Polignac number, because 156322263231 - 2²⁵ = 156288708799 is a prime.

It is a super-2 number, since 2×156322263231² (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 (156322263211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2894856700 + ... + 2894856753.

It is an arithmetic number, because the mean of its divisors is an integer number (28948567270).

Almost surely, 2^156322263231 is an apocalyptic number.

156322263231 is a deficient number, since it is larger than the sum of its proper divisors (75266274929).

156322263231 is an equidigital number, since it uses as much as digits as its factorization.

156322263231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5789713462 (or 5789713456 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

Adding to 156322263231 its reverse (132362223651), we get a palindrome (288684486882).

The spelling of 156322263231 in words is "one hundred fifty-six billion, three hundred twenty-two million, two hundred sixty-three thousand, two hundred thirty-one".