1255044005663 has 8 divisors (see below), whose sum is σ = 1496698441728. Its totient is φ = 1028980178424.

The previous prime is 1255044005639. The next prime is 1255044005669. The reversal of 1255044005663 is 3665004405521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255044005663 - 2³⁴ = 1237864136479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255044005663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255044005669) 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, 3897652031 + ... + 3897652352.

It is an arithmetic number, because the mean of its divisors is an integer number (187087305216).

Almost surely, 2^{1255044005663} is an apocalyptic number.

1255044005663 is a deficient number, since it is larger than the sum of its proper divisors (241654436065).

1255044005663 is an equidigital number, since it uses as much as digits as its factorization.

1255044005663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7795304413.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 1255044005663 in words is "one trillion, two hundred fifty-five billion, forty-four million, five thousand, six hundred sixty-three".