165884692117 has 4 divisors (see below), whose sum is σ = 165977522496. Its totient is φ = 165791861740.

The previous prime is 165884692097. The next prime is 165884692147. The reversal of 165884692117 is 711296488561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 165884692117 - 2²⁷ = 165750474389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165884692147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46412509 + ... + 46416082.

It is an arithmetic number, because the mean of its divisors is an integer number (41494380624).

Almost surely, 2^165884692117 is an apocalyptic number.

It is an amenable number.

165884692117 is a deficient number, since it is larger than the sum of its proper divisors (92830379).

165884692117 is an equidigital number, since it uses as much as digits as its factorization.

165884692117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92830378.

The product of its digits is 5806080, while the sum is 58.

The spelling of 165884692117 in words is "one hundred sixty-five billion, eight hundred eighty-four million, six hundred ninety-two thousand, one hundred seventeen".