255654562665 has 16 divisors (see below), whose sum is σ = 409609968768. Its totient is φ = 136161543936.

The previous prime is 255654562661. The next prime is 255654562673. The reversal of 255654562665 is 566265456552.

It is a happy number.

255654562665 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 255654562665 - 2² = 255654562661 is a prime.

It is a super-2 number, since 2×255654562665² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255654562661) 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 15 ways as a sum of consecutive naturals, for example, 11710992 + ... + 11732801.

It is an arithmetic number, because the mean of its divisors is an integer number (25600623048).

Almost surely, 2^255654562665 is an apocalyptic number.

It is an amenable number.

255654562665 is a deficient number, since it is larger than the sum of its proper divisors (153955406103).

255654562665 is a wasteful number, since it uses less digits than its factorization.

255654562665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23444528.

The product of its digits is 64800000, while the sum is 57.

The spelling of 255654562665 in words is "two hundred fifty-five billion, six hundred fifty-four million, five hundred sixty-two thousand, six hundred sixty-five".