655051026231 has 24 divisors (see below), whose sum is σ = 1081395063840. Its totient is φ = 374300683776.

The previous prime is 655051026221. The next prime is 655051026239. The reversal of 655051026231 is 132620150556.

655051026231 is a `hidden beast` number, since 6 + 5 + 50 + 510 + 2 + 62 + 31 = 666.

It is not a de Polignac number, because 655051026231 - 2⁵ = 655051026199 is a prime.

It is a super-2 number, since 2×655051026231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655051026239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1608435 + ... + 1974123.

It is an arithmetic number, because the mean of its divisors is an integer number (45058127660).

Almost surely, 2^655051026231 is an apocalyptic number.

655051026231 is a deficient number, since it is larger than the sum of its proper divisors (426344037609).

655051026231 is a wasteful number, since it uses less digits than its factorization.

655051026231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394135 (or 394132 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 655051026231 its reverse (132620150556), we get a palindrome (787671176787).

The spelling of 655051026231 in words is "six hundred fifty-five billion, fifty-one million, twenty-six thousand, two hundred thirty-one".