1165353113253 has 12 divisors (see below), whose sum is σ = 1807486461600. Its totient is φ = 665916064632.

The previous prime is 1165353113251. The next prime is 1165353113273. The reversal of 1165353113253 is 3523113535611.

It is not a de Polignac number, because 1165353113253 - 2¹ = 1165353113251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165353113251) 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, 3963785953 + ... + 3963786246.

It is an arithmetic number, because the mean of its divisors is an integer number (150623871800).

Almost surely, 2^{1165353113253} is an apocalyptic number.

It is an amenable number.

1165353113253 is a deficient number, since it is larger than the sum of its proper divisors (642133348347).

1165353113253 is an equidigital number, since it uses as much as digits as its factorization.

1165353113253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927572216 (or 7927572209 counting only the distinct ones).

The product of its digits is 121500, while the sum is 39.

Adding to 1165353113253 its reverse (3523113535611), we get a palindrome (4688466648864).

The spelling of 1165353113253 in words is "one trillion, one hundred sixty-five billion, three hundred fifty-three million, one hundred thirteen thousand, two hundred fifty-three".