20388192205 has 16 divisors (see below), whose sum is σ = 24662493504. Its totient is φ = 16179546240.

The previous prime is 20388192113. The next prime is 20388192217. The reversal of 20388192205 is 50229188302.

It is not a de Polignac number, because 20388192205 - 2³¹ = 18240708557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2244082 + ... + 2253148.

It is an arithmetic number, because the mean of its divisors is an integer number (1541405844).

Almost surely, 2^20388192205 is an apocalyptic number.

It is an amenable number.

20388192205 is a deficient number, since it is larger than the sum of its proper divisors (4274301299).

20388192205 is a wasteful number, since it uses less digits than its factorization.

20388192205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12636.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 20388192205 in words is "twenty billion, three hundred eighty-eight million, one hundred ninety-two thousand, two hundred five".