255551814672 has 320 divisors, whose sum is σ = 864177831936. Its totient is φ = 63098196480.

The previous prime is 255551814619. The next prime is 255551814677. The reversal of 255551814672 is 276418155552.

It is not an unprimeable number, because it can be changed into a prime (255551814677) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13847083 + ... + 13865525.

Almost surely, 2^255551814672 is an apocalyptic number.

255551814672 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 255551814672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432088915968).

255551814672 is an abundant number, since it is smaller than the sum of its proper divisors (608626017264).

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

255551814672 is a wasteful number, since it uses less digits than its factorization.

255551814672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18658 (or 18652 counting only the distinct ones).

The product of its digits is 3360000, while the sum is 51.

The spelling of 255551814672 in words is "two hundred fifty-five billion, five hundred fifty-one million, eight hundred fourteen thousand, six hundred seventy-two".