20393998801 has 8 divisors (see below), whose sum is σ = 22249844064. Its totient is φ = 18538461120.

The previous prime is 20393998771. The next prime is 20393998819. The reversal of 20393998801 is 10889939302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20393998801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20393998871) 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, 74761 + ... + 215353.

It is an arithmetic number, because the mean of its divisors is an integer number (2781230508).

Almost surely, 2^20393998801 is an apocalyptic number.

It is an amenable number.

20393998801 is a deficient number, since it is larger than the sum of its proper divisors (1855845263).

20393998801 is a wasteful number, since it uses less digits than its factorization.

20393998801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153791.

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 20393998801 in words is "twenty billion, three hundred ninety-three million, nine hundred ninety-eight thousand, eight hundred one".