1255331355344 has 40 divisors (see below), whose sum is σ = 2654976031968. Its totient is φ = 570247735680.

The previous prime is 1255331355337. The next prime is 1255331355389. The reversal of 1255331355344 is 4435531335521.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 1255331355295 and 1255331355304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1952042 + ... + 2514185.

Almost surely, 2^{1255331355344} is an apocalyptic number.

It is an amenable number.

1255331355344 is an abundant number, since it is smaller than the sum of its proper divisors (1399644676624).

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

1255331355344 is a wasteful number, since it uses less digits than its factorization.

1255331355344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467843 (or 4467837 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 44.

The spelling of 1255331355344 in words is "one trillion, two hundred fifty-five billion, three hundred thirty-one million, three hundred fifty-five thousand, three hundred forty-four".