1255511620713 has 24 divisors (see below), whose sum is σ = 1948586536128. Its totient is φ = 716970121056.

The previous prime is 1255511620709. The next prime is 1255511620747. The reversal of 1255511620713 is 3170261155521.

It is not a de Polignac number, because 1255511620713 - 2² = 1255511620709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255511620513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2540806 + ... + 2994447.

It is an arithmetic number, because the mean of its divisors is an integer number (81191105672).

Almost surely, 2^{1255511620713} is an apocalyptic number.

It is an amenable number.

1255511620713 is a deficient number, since it is larger than the sum of its proper divisors (693074915415).

1255511620713 is a wasteful number, since it uses less digits than its factorization.

1255511620713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536813 (or 5536806 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 1255511620713 in words is "one trillion, two hundred fifty-five billion, five hundred eleven million, six hundred twenty thousand, seven hundred thirteen".