255691106576 has 80 divisors (see below), whose sum is σ = 539716098816. Its totient is φ = 116856649728.

The previous prime is 255691106537. The next prime is 255691106581. The reversal of 255691106576 is 675601196552.

It is a happy number.

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, 5481785 + ... + 5528231.

Almost surely, 2^255691106576 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 255691106576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269858049408).

255691106576 is an abundant number, since it is smaller than the sum of its proper divisors (284024992240).

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

255691106576 is a wasteful number, since it uses less digits than its factorization.

255691106576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47056 (or 47050 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 53.

The spelling of 255691106576 in words is "two hundred fifty-five billion, six hundred ninety-one million, one hundred six thousand, five hundred seventy-six".