255266771072 has 128 divisors (see below), whose sum is σ = 562375612800. Its totient is φ = 114798182400.

The previous prime is 255266771057. The next prime is 255266771099. The reversal of 255266771072 is 270177662552.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×255266771072² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 255266771072.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89534447 + ... + 89537297.

It is an arithmetic number, because the mean of its divisors is an integer number (4393559475).

Almost surely, 2^255266771072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255266771072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281187806400).

255266771072 is an abundant number, since it is smaller than the sum of its proper divisors (307108841728).

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

255266771072 is a wasteful number, since it uses less digits than its factorization.

255266771072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694 (or 4682 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 255266771072 in words is "two hundred fifty-five billion, two hundred sixty-six million, seven hundred seventy-one thousand, seventy-two".