165043324523253 has 32 divisors (see below), whose sum is σ = 258351328420992. Its totient is φ = 92599042406400.

The previous prime is 165043324523249. The next prime is 165043324523263. The reversal of 165043324523253 is 352325423340561.

It is a happy number.

165043324523253 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 165043324523253 - 2² = 165043324523249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165043324523263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2411399176 + ... + 2411467617.

It is an arithmetic number, because the mean of its divisors is an integer number (8073479013156).

Almost surely, 2^{165043324523253} is an apocalyptic number.

It is an amenable number.

165043324523253 is a deficient number, since it is larger than the sum of its proper divisors (93308003897739).

165043324523253 is a wasteful number, since it uses less digits than its factorization.

165043324523253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822866885.

The product of its (nonzero) digits is 7776000, while the sum is 48.

The spelling of 165043324523253 in words is "one hundred sixty-five trillion, forty-three billion, three hundred twenty-four million, five hundred twenty-three thousand, two hundred fifty-three".