20303387805 has 8 divisors (see below), whose sum is σ = 32485420512. Its totient is φ = 10828473488.

The previous prime is 20303387791. The next prime is 20303387831. The reversal of 20303387805 is 50878330302.

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 20303387805 - 2⁴ = 20303387789 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676779579 + ... + 676779608.

It is an arithmetic number, because the mean of its divisors is an integer number (4060677564).

Almost surely, 2^20303387805 is an apocalyptic number.

It is an amenable number.

20303387805 is a deficient number, since it is larger than the sum of its proper divisors (12182032707).

20303387805 is a wasteful number, since it uses less digits than its factorization.

20303387805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353559195.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 20303387805 in words is "twenty billion, three hundred three million, three hundred eighty-seven thousand, eight hundred five".