255666364 has 12 divisors (see below), whose sum is σ = 447569584. Its totient is φ = 127789344.

The previous prime is 255666353. The next prime is 255666401. The reversal of 255666364 is 463666552.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 255666364.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4624 + ... + 23080.

Almost surely, 2^255666364 is an apocalyptic number.

It is an amenable number.

255666364 is a deficient number, since it is larger than the sum of its proper divisors (191903220).

255666364 is a wasteful number, since it uses less digits than its factorization.

255666364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21924 (or 21922 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The square root of 255666364 is about 15989.5704757820. The cubic root of 255666364 is about 634.6844601727.

The spelling of 255666364 in words is "two hundred fifty-five million, six hundred sixty-six thousand, three hundred sixty-four".