165045653010223 has 4 divisors (see below), whose sum is σ = 165046385661768. Its totient is φ = 165044920358680.

The previous prime is 165045653010211. The next prime is 165045653010253. The reversal of 165045653010223 is 322010356540561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165045653010223 - 2¹³ = 165045653002031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165045653010223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165045653010253) 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, 365987761 + ... + 366438442.

It is an arithmetic number, because the mean of its divisors is an integer number (41261596415442).

Almost surely, 2^{165045653010223} is an apocalyptic number.

165045653010223 is a deficient number, since it is larger than the sum of its proper divisors (732651545).

165045653010223 is an equidigital number, since it uses as much as digits as its factorization.

165045653010223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732651544.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 165045653010223 in words is "one hundred sixty-five trillion, forty-five billion, six hundred fifty-three million, ten thousand, two hundred twenty-three".