1166135319269 has 4 divisors (see below), whose sum is σ = 1174647256044. Its totient is φ = 1157623382496.

The previous prime is 1166135319263. The next prime is 1166135319281. The reversal of 1166135319269 is 9629135316611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 324173087044 + 841962232225 = 569362^2 + 917585^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166135319269 - 2¹² = 1166135315173 is a prime.

It is a super-2 number, since 2×1166135319269² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1166135319269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166135319263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4255968182 + ... + 4255968455.

It is an arithmetic number, because the mean of its divisors is an integer number (293661814011).

Almost surely, 2^{1166135319269} is an apocalyptic number.

It is an amenable number.

1166135319269 is a deficient number, since it is larger than the sum of its proper divisors (8511936775).

1166135319269 is an equidigital number, since it uses as much as digits as its factorization.

1166135319269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8511936774.

The product of its digits is 1574640, while the sum is 53.

The spelling of 1166135319269 in words is "one trillion, one hundred sixty-six billion, one hundred thirty-five million, three hundred nineteen thousand, two hundred sixty-nine".