20620327999 has 8 divisors (see below), whose sum is σ = 21737683440. Its totient is φ = 19506180096.

The previous prime is 20620327979. The next prime is 20620328077. The reversal of 20620327999 is 99972302602.

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 20620327999 - 2¹³ = 20620319807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620327919) 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, 788674 + ... + 814399.

It is an arithmetic number, because the mean of its divisors is an integer number (2717210430).

Almost surely, 2^20620327999 is an apocalyptic number.

20620327999 is a deficient number, since it is larger than the sum of its proper divisors (1117355441).

20620327999 is a wasteful number, since it uses less digits than its factorization.

20620327999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603769.

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 20620327999 in words is "twenty billion, six hundred twenty million, three hundred twenty-seven thousand, nine hundred ninety-nine".