20079321599 has 8 divisors (see below), whose sum is σ = 20206577520. Its totient is φ = 19952233600.

The previous prime is 20079321569. The next prime is 20079321601. The reversal of 20079321599 is 99512397002.

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 20079321599 - 2⁸ = 20079321343 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 (20079321569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202409 + ... + 284829.

It is an arithmetic number, because the mean of its divisors is an integer number (2525822190).

Almost surely, 2^20079321599 is an apocalyptic number.

20079321599 is a deficient number, since it is larger than the sum of its proper divisors (127255921).

20079321599 is a wasteful number, since it uses less digits than its factorization.

20079321599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83961.

The product of its (nonzero) digits is 306180, while the sum is 47.

The spelling of 20079321599 in words is "twenty billion, seventy-nine million, three hundred twenty-one thousand, five hundred ninety-nine".