1313219266555 has 12 divisors (see below), whose sum is σ = 1833146894880. Its totient is φ = 900493211184.

The previous prime is 1313219266529. The next prime is 1313219266559. The reversal of 1313219266555 is 5556629123131.

It is not a de Polignac number, because 1313219266555 - 2¹¹ = 1313219264507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 1313219266499 and 1313219266508.

It is not an unprimeable number, because it can be changed into a prime (1313219266559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2680039075 + ... + 2680039564.

It is an arithmetic number, because the mean of its divisors is an integer number (152762241240).

Almost surely, 2^{1313219266555} is an apocalyptic number.

1313219266555 is a deficient number, since it is larger than the sum of its proper divisors (519927628325).

1313219266555 is an equidigital number, since it uses as much as digits as its factorization.

1313219266555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5360078658 (or 5360078651 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 49.

The spelling of 1313219266555 in words is "one trillion, three hundred thirteen billion, two hundred nineteen million, two hundred sixty-six thousand, five hundred fifty-five".