165252343430253 has 16 divisors (see below), whose sum is σ = 238201576118720. Its totient is φ = 101549092974336.

The previous prime is 165252343430231. The next prime is 165252343430297. The reversal of 165252343430253 is 352034343252561.

It is a happy number.

It is not a de Polignac number, because 165252343430253 - 2⁸ = 165252343429997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165252343430453) 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, 39177888700 + ... + 39177892917.

It is an arithmetic number, because the mean of its divisors is an integer number (14887598507420).

Almost surely, 2^{165252343430253} is an apocalyptic number.

It is an amenable number.

165252343430253 is a deficient number, since it is larger than the sum of its proper divisors (72949232688467).

165252343430253 is a wasteful number, since it uses less digits than its factorization.

165252343430253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78355781676.

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

The spelling of 165252343430253 in words is "one hundred sixty-five trillion, two hundred fifty-two billion, three hundred forty-three million, four hundred thirty thousand, two hundred fifty-three".