165763057073 has 4 divisors (see below), whose sum is σ = 165815400960. Its totient is φ = 165710713188.

The previous prime is 165763056941. The next prime is 165763057099. The reversal of 165763057073 is 370750367561.

165763057073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 370750367561 = 7 ⋅52964338223.

It is a cyclic number.

It is not a de Polignac number, because 165763057073 - 2²⁴ = 165746279857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165763057973) 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 3 ways as a sum of consecutive naturals, for example, 26167193 + ... + 26173526.

It is an arithmetic number, because the mean of its divisors is an integer number (41453850240).

Almost surely, 2^165763057073 is an apocalyptic number.

It is an amenable number.

165763057073 is a deficient number, since it is larger than the sum of its proper divisors (52343887).

165763057073 is an equidigital number, since it uses as much as digits as its factorization.

165763057073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52343886.

The product of its (nonzero) digits is 2778300, while the sum is 50.

The spelling of 165763057073 in words is "one hundred sixty-five billion, seven hundred sixty-three million, fifty-seven thousand, seventy-three".