165773009493 has 48 divisors (see below), whose sum is σ = 294763845376. Its totient is φ = 87424012800.

The previous prime is 165773009461. The next prime is 165773009527. The reversal of 165773009493 is 394900377561.

It is a happy number.

165773009493 is a `hidden beast` number, since 165 + 7 + 7 + 300 + 94 + 93 = 666.

165773009493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165773009493 - 2⁵ = 165773009461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165773005493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5100093 + ... + 5132493.

Almost surely, 2^165773009493 is an apocalyptic number.

165773009493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

165773009493 is a deficient number, since it is larger than the sum of its proper divisors (128990835883).

165773009493 is a wasteful number, since it uses less digits than its factorization.

165773009493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38674 (or 38671 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 165773009493 in words is "one hundred sixty-five billion, seven hundred seventy-three million, nine thousand, four hundred ninety-three".