1165271000817 has 48 divisors (see below), whose sum is σ = 1971895698432. Its totient is φ = 605264597280.

The previous prime is 1165271000783. The next prime is 1165271000819. The reversal of 1165271000817 is 7180001725611.

It is not a de Polignac number, because 1165271000817 - 2¹⁹ = 1165270476529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165271000819) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15522948 + ... + 15597834.

It is an arithmetic number, because the mean of its divisors is an integer number (41081160384).

Almost surely, 2^{1165271000817} is an apocalyptic number.

It is an amenable number.

1165271000817 is a deficient number, since it is larger than the sum of its proper divisors (806624697615).

1165271000817 is a wasteful number, since it uses less digits than its factorization.

1165271000817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84538 (or 84531 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 39.

The spelling of 1165271000817 in words is "one trillion, one hundred sixty-five billion, two hundred seventy-one million, eight hundred seventeen", and thus it is an aban number.