165748767373 has 16 divisors (see below), whose sum is σ = 196007472000. Its totient is φ = 137137557312.

The previous prime is 165748767343. The next prime is 165748767391. The reversal of 165748767373 is 373767847561.

It is a happy number.

It is not a de Polignac number, because 165748767373 - 2⁹ = 165748766861 is a prime.

It is a super-2 number, since 2×165748767373² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165748767343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741583 + ... + 938851.

It is an arithmetic number, because the mean of its divisors is an integer number (12250467000).

Almost surely, 2^165748767373 is an apocalyptic number.

It is an amenable number.

165748767373 is a deficient number, since it is larger than the sum of its proper divisors (30258704627).

165748767373 is a wasteful number, since it uses less digits than its factorization.

165748767373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201444.

The product of its digits is 124467840, while the sum is 64.

The spelling of 165748767373 in words is "one hundred sixty-five billion, seven hundred forty-eight million, seven hundred sixty-seven thousand, three hundred seventy-three".