255531645066 has 16 divisors (see below), whose sum is σ = 511071321600. Its totient is φ = 85175876448.

The previous prime is 255531645043. The next prime is 255531645067. The reversal of 255531645066 is 660546135552.

It is not an unprimeable number, because it can be changed into a prime (255531645067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128215 + ... + 726293.

It is an arithmetic number, because the mean of its divisors is an integer number (31941957600).

Almost surely, 2^255531645066 is an apocalyptic number.

255531645066 is an abundant number, since it is smaller than the sum of its proper divisors (255539676534).

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

255531645066 is a wasteful number, since it uses less digits than its factorization.

255531645066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669293.

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 255531645066 in words is "two hundred fifty-five billion, five hundred thirty-one million, six hundred forty-five thousand, sixty-six".