20005342206673 has 8 divisors (see below), whose sum is σ = 20695778985600. Its totient is φ = 19314945253968.

The previous prime is 20005342206671. The next prime is 20005342206677. The reversal of 20005342206673 is 37660224350002.

It is a happy number.

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 20005342206673 - 2¹ = 20005342206671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20005342206671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8932803 + ... + 10945576.

It is an arithmetic number, because the mean of its divisors is an integer number (2586972373200).

Almost surely, 2^{20005342206673} is an apocalyptic number.

It is an amenable number.

20005342206673 is a deficient number, since it is larger than the sum of its proper divisors (690436778927).

20005342206673 is a wasteful number, since it uses less digits than its factorization.

20005342206673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19913111.

The product of its (nonzero) digits is 362880, while the sum is 40.

Adding to 20005342206673 its reverse (37660224350002), we get a palindrome (57665566556675).

The spelling of 20005342206673 in words is "twenty trillion, five billion, three hundred forty-two million, two hundred six thousand, six hundred seventy-three".