255664144224 has 36 divisors (see below), whose sum is σ = 727044910956. Its totient is φ = 85221381312.

The previous prime is 255664144207. The next prime is 255664144231. The reversal of 255664144224 is 422441466552.

255664144224 is a `hidden beast` number, since 2 + 5 + 5 + 6 + 6 + 414 + 4 + 224 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 255664144224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 443861074 + ... + 443861649.

It is an arithmetic number, because the mean of its divisors is an integer number (20195691971).

Almost surely, 2^255664144224 is an apocalyptic number.

255664144224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255664144224 is an abundant number, since it is smaller than the sum of its proper divisors (471380766732).

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

255664144224 is a wasteful number, since it uses less digits than its factorization.

255664144224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887722739 (or 887722728 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 45.

The spelling of 255664144224 in words is "two hundred fifty-five billion, six hundred sixty-four million, one hundred forty-four thousand, two hundred twenty-four".