255547663406 has 16 divisors (see below), whose sum is σ = 438116618880. Its totient is φ = 109511699640.

The previous prime is 255547663337. The next prime is 255547663409. The reversal of 255547663406 is 604366745552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255547663409) 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, 543740 + ... + 898191.

It is an arithmetic number, because the mean of its divisors is an integer number (27382288680).

Almost surely, 2^255547663406 is an apocalyptic number.

255547663406 is a deficient number, since it is larger than the sum of its proper divisors (182568955474).

255547663406 is a wasteful number, since it uses less digits than its factorization.

255547663406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454599.

The product of its (nonzero) digits is 18144000, while the sum is 53.

The spelling of 255547663406 in words is "two hundred fifty-five billion, five hundred forty-seven million, six hundred sixty-three thousand, four hundred six".