255590801644 has 12 divisors (see below), whose sum is σ = 447633625600. Its totient is φ = 127695480048.

The previous prime is 255590801623. The next prime is 255590801657. The reversal of 255590801644 is 446108095552.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24974439 + ... + 24984670.

Almost surely, 2^255590801644 is an apocalyptic number.

It is an amenable number.

255590801644 is a deficient number, since it is larger than the sum of its proper divisors (192042823956).

255590801644 is a wasteful number, since it uses less digits than its factorization.

255590801644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49960392 (or 49960390 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 255590801644 in words is "two hundred fifty-five billion, five hundred ninety million, eight hundred one thousand, six hundred forty-four".