255111423555105 has 96 divisors (see below), whose sum is σ = 496977648201216. Its totient is φ = 120117032082432.

The previous prime is 255111423555097. The next prime is 255111423555137. The reversal of 255111423555105 is 501555324111552.

255111423555105 is a `hidden beast` number, since 2 + 5 + 5 + 111 + 423 + 5 + 5 + 5 + 105 = 666.

It is not a de Polignac number, because 255111423555105 - 2³ = 255111423555097 is a prime.

It is a super-2 number, since 2×255111423555105² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 102004692 + ... + 104475738.

It is an arithmetic number, because the mean of its divisors is an integer number (5176850502096).

Almost surely, 2^{255111423555105} is an apocalyptic number.

It is an amenable number.

255111423555105 is a deficient number, since it is larger than the sum of its proper divisors (241866224646111).

255111423555105 is a wasteful number, since it uses less digits than its factorization.

255111423555105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478767 (or 2478764 counting only the distinct ones).

The product of its (nonzero) digits is 750000, while the sum is 45.

Adding to 255111423555105 its reverse (501555324111552), we get a palindrome (756666747666657).

The spelling of 255111423555105 in words is "two hundred fifty-five trillion, one hundred eleven billion, four hundred twenty-three million, five hundred fifty-five thousand, one hundred five".