255410589666 has 32 divisors (see below), whose sum is σ = 537729350400. Its totient is φ = 80652548880.

The previous prime is 255410589659. The next prime is 255410589697. The reversal of 255410589666 is 666985014552.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4831365 + ... + 4883943.

It is an arithmetic number, because the mean of its divisors is an integer number (16804042200).

Almost surely, 2^255410589666 is an apocalyptic number.

255410589666 is an abundant number, since it is smaller than the sum of its proper divisors (282318760734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255410589666 is a wasteful number, since it uses less digits than its factorization.

255410589666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95214.

The product of its (nonzero) digits is 15552000, while the sum is 57.

The spelling of 255410589666 in words is "two hundred fifty-five billion, four hundred ten million, five hundred eighty-nine thousand, six hundred sixty-six".