165170653560073 has 4 divisors (see below), whose sum is σ = 188766461211520. Its totient is φ = 141574845908628.

The previous prime is 165170653560047. The next prime is 165170653560097. The reversal of 165170653560073 is 370065356071561.

It is a happy number.

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 165170653560073 - 2¹³ = 165170653551881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165170653559996 and 165170653560023.

It is not an unprimeable number, because it can be changed into a prime (165170653560013) 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, 11797903825713 + ... + 11797903825726.

It is an arithmetic number, because the mean of its divisors is an integer number (47191615302880).

Almost surely, 2^{165170653560073} is an apocalyptic number.

It is an amenable number.

165170653560073 is a deficient number, since it is larger than the sum of its proper divisors (23595807651447).

165170653560073 is an equidigital number, since it uses as much as digits as its factorization.

165170653560073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23595807651446.

The product of its (nonzero) digits is 11907000, while the sum is 55.

The spelling of 165170653560073 in words is "one hundred sixty-five trillion, one hundred seventy billion, six hundred fifty-three million, five hundred sixty thousand, seventy-three".