20004352517164 has 48 divisors (see below), whose sum is σ = 37894334929920. Its totient is φ = 9215798866560.

The previous prime is 20004352517153. The next prime is 20004352517207. The reversal of 20004352517164 is 46171525340002.

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 15 ways as a sum of consecutive naturals, for example, 33267714 + ... + 33863689.

It is an arithmetic number, because the mean of its divisors is an integer number (789465311040).

Almost surely, 2^{20004352517164} is an apocalyptic number.

It is an amenable number.

20004352517164 is a deficient number, since it is larger than the sum of its proper divisors (17889982412756).

20004352517164 is a wasteful number, since it uses less digits than its factorization.

20004352517164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67131550 (or 67131548 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

Adding to 20004352517164 its reverse (46171525340002), we get a palindrome (66175877857166).

The spelling of 20004352517164 in words is "twenty trillion, four billion, three hundred fifty-two million, five hundred seventeen thousand, one hundred sixty-four".