165325240063253 has 4 divisors (see below), whose sum is σ = 165922082085420. Its totient is φ = 164728398041088.

The previous prime is 165325240063241. The next prime is 165325240063271. The reversal of 165325240063253 is 352360042523561.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28891463506084 + 136433776557169 = 5375078^2 + 11680487^2 .

It is a cyclic number.

It is not a de Polignac number, because 165325240063253 - 2⁴ = 165325240063237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165325240063198 and 165325240063207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165325240063213) 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, 298421010668 + ... + 298421011221.

It is an arithmetic number, because the mean of its divisors is an integer number (41480520521355).

Almost surely, 2^{165325240063253} is an apocalyptic number.

It is an amenable number.

165325240063253 is a deficient number, since it is larger than the sum of its proper divisors (596842022167).

165325240063253 is an equidigital number, since it uses as much as digits as its factorization.

165325240063253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596842022166.

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 165325240063253 in words is "one hundred sixty-five trillion, three hundred twenty-five billion, two hundred forty million, sixty-three thousand, two hundred fifty-three".