165346984493 has 4 divisors (see below), whose sum is σ = 166038813120. Its totient is φ = 164655155868.

The previous prime is 165346984477. The next prime is 165346984501. The reversal of 165346984493 is 394489643561.

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 165346984493 - 2⁴ = 165346984477 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 (165346984423) 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, 345913955 + ... + 345914432.

It is an arithmetic number, because the mean of its divisors is an integer number (41509703280).

Almost surely, 2^165346984493 is an apocalyptic number.

It is an amenable number.

165346984493 is a deficient number, since it is larger than the sum of its proper divisors (691828627).

165346984493 is an equidigital number, since it uses as much as digits as its factorization.

165346984493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691828626.

The product of its digits is 67184640, while the sum is 62.

The spelling of 165346984493 in words is "one hundred sixty-five billion, three hundred forty-six million, nine hundred eighty-four thousand, four hundred ninety-three".