163253646365 has 8 divisors (see below), whose sum is σ = 195919342080. Its totient is φ = 130592939472.

The previous prime is 163253646341. The next prime is 163253646397. The reversal of 163253646365 is 563646352361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163253646365 - 2¹⁰ = 163253645341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174829 + ... + 1306418.

It is an arithmetic number, because the mean of its divisors is an integer number (24489917760).

Almost surely, 2^163253646365 is an apocalyptic number.

It is an amenable number.

163253646365 is a deficient number, since it is larger than the sum of its proper divisors (32665695715).

163253646365 is a wasteful number, since it uses less digits than its factorization.

163253646365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494411.

The product of its digits is 6998400, while the sum is 50.

The spelling of 163253646365 in words is "one hundred sixty-three billion, two hundred fifty-three million, six hundred forty-six thousand, three hundred sixty-five".