255852438016 has 80 divisors (see below), whose sum is σ = 586230853824. Its totient is φ = 109276360704.

The previous prime is 255852438011. The next prime is 255852438119. The reversal of 255852438016 is 610834258552.

It is a super-2 number, since 2×255852438016² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255852438011) 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, 928291 + ... + 1171933.

Almost surely, 2^255852438016 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 255852438016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293115426912).

255852438016 is an abundant number, since it is smaller than the sum of its proper divisors (330378415808).

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

255852438016 is an equidigital number, since it uses as much as digits as its factorization.

255852438016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243961 (or 243945 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 49.

The spelling of 255852438016 in words is "two hundred fifty-five billion, eight hundred fifty-two million, four hundred thirty-eight thousand, sixteen".