20008204186 has 16 divisors (see below), whose sum is σ = 30205384704. Its totient is φ = 9939942544.

The previous prime is 20008204147. The next prime is 20008204207. The reversal of 20008204186 is 68140280002.

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, 151800 + ... + 251116.

It is an arithmetic number, because the mean of its divisors is an integer number (1887836544).

Almost surely, 2^20008204186 is an apocalyptic number.

20008204186 is a deficient number, since it is larger than the sum of its proper divisors (10197180518).

20008204186 is a wasteful number, since it uses less digits than its factorization.

20008204186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99965.

The product of its (nonzero) digits is 6144, while the sum is 31.

Adding to 20008204186 its reverse (68140280002), we get a palindrome (88148484188).

The spelling of 20008204186 in words is "twenty billion, eight million, two hundred four thousand, one hundred eighty-six".