255553736440000 has 140 divisors (see below), whose sum is σ = 641325041562744. Its totient is φ = 100989908992000.

The previous prime is 255553736439959. The next prime is 255553736440049. The reversal of 255553736440000 is 44637355552.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35167009 + ... + 41807008.

Almost surely, 2^{255553736440000} is an apocalyptic number.

255553736440000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255553736440000 is an abundant number, since it is smaller than the sum of its proper divisors (385771305122744).

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

255553736440000 is an frugal number, since it uses more digits than its factorization.

255553736440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76974132 (or 76974107 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 49.

The spelling of 255553736440000 in words is "two hundred fifty-five trillion, five hundred fifty-three billion, seven hundred thirty-six million, four hundred forty thousand".