654623322231 has 16 divisors (see below), whose sum is σ = 874343656800. Its totient is φ = 435659860608.

The previous prime is 654623322229. The next prime is 654623322343. The reversal of 654623322231 is 132223326456.

654623322231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 654623322231 - 2¹ = 654623322229 is a prime.

It is a super-2 number, since 2×654623322231² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 654623322231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654623302231) 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, 4423585 + ... + 4569173.

It is an arithmetic number, because the mean of its divisors is an integer number (54646478550).

Almost surely, 2^654623322231 is an apocalyptic number.

654623322231 is a deficient number, since it is larger than the sum of its proper divisors (219720334569).

654623322231 is a wasteful number, since it uses less digits than its factorization.

654623322231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148178.

The product of its digits is 311040, while the sum is 39.

Adding to 654623322231 its reverse (132223326456), we get a palindrome (786846648687).

The spelling of 654623322231 in words is "six hundred fifty-four billion, six hundred twenty-three million, three hundred twenty-two thousand, two hundred thirty-one".