18200020002 has 16 divisors (see below), whose sum is σ = 36403057920. Its totient is φ = 6066170352.

The previous prime is 18200020001. The next prime is 18200020031. The reversal of 18200020002 is 20002000281.

18200020002 is a modest number, since divided by 20002 gives 182 as remainder.

It is not an unprimeable number, because it can be changed into a prime (18200020001) 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, 43177 + ... + 195612.

It is an arithmetic number, because the mean of its divisors is an integer number (2275191120).

Almost surely, 2^18200020002 is an apocalyptic number.

18200020002 is an abundant number, since it is smaller than the sum of its proper divisors (18203037918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18200020002 is a wasteful number, since it uses less digits than its factorization.

18200020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251497.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 18200020002 its reverse (20002000281), we get a palindrome (38202020283).

The spelling of 18200020002 in words is "eighteen billion, two hundred million, twenty thousand, two".