255366663552 has 1024 divisors, whose sum is σ = 1023718348800. Its totient is φ = 60515942400.

The previous prime is 255366663481. The next prime is 255366663557.

255366663552 is nontrivially palindromic in base 10.

255366663552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255366663557) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 335566852 + ... + 335567612.

It is an arithmetic number, because the mean of its divisors is an integer number (999724950).

Almost surely, 2^255366663552 is an apocalyptic number.

255366663552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255366663552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511859174400).

255366663552 is an abundant number, since it is smaller than the sum of its proper divisors (768351685248).

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

255366663552 is a wasteful number, since it uses less digits than its factorization.

255366663552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 894 counting only the distinct ones).

The product of its digits is 29160000, while the sum is 54.

The spelling of 255366663552 in words is "two hundred fifty-five billion, three hundred sixty-six million, six hundred sixty-three thousand, five hundred fifty-two".