20646001324003 has 8 divisors (see below), whose sum is σ = 22526543923200. Its totient is φ = 18766064289480.

The previous prime is 20646001323943. The next prime is 20646001324037. The reversal of 20646001324003 is 30042310064602.

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 20646001324003 - 2³³ = 20637411389411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20646001324903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151319875 + ... + 151456252.

It is an arithmetic number, because the mean of its divisors is an integer number (2815817990400).

Almost surely, 2^{20646001324003} is an apocalyptic number.

20646001324003 is a deficient number, since it is larger than the sum of its proper divisors (1880542599197).

20646001324003 is a wasteful number, since it uses less digits than its factorization.

20646001324003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302782337.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 20646001324003 its reverse (30042310064602), we get a palindrome (50688311388605).

The spelling of 20646001324003 in words is "twenty trillion, six hundred forty-six billion, one million, three hundred twenty-four thousand, three".