255426215161023 has 16 divisors (see below), whose sum is σ = 379532083646560. Its totient is φ = 169778849240448.

The previous prime is 255426215161001. The next prime is 255426215161049. The reversal of 255426215161023 is 320161512624552.

255426215161023 is a `hidden beast` number, since 2 + 5 + 5 + 4 + 2 + 6 + 2 + 1 + 5 + 1 + 610 + 23 = 666.

It is not a de Polignac number, because 255426215161023 - 2¹⁸ = 255426214898879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255426215161023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255426215181023) 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, 14035940740 + ... + 14035958937.

It is an arithmetic number, because the mean of its divisors is an integer number (23720755227910).

Almost surely, 2^{255426215161023} is an apocalyptic number.

255426215161023 is a deficient number, since it is larger than the sum of its proper divisors (124105868485537).

255426215161023 is a wasteful number, since it uses less digits than its factorization.

255426215161023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28071900023 (or 28071900017 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

Adding to 255426215161023 its reverse (320161512624552), we get a palindrome (575587727785575).

The spelling of 255426215161023 in words is "two hundred fifty-five trillion, four hundred twenty-six billion, two hundred fifteen million, one hundred sixty-one thousand, twenty-three".