18520200002 has 16 divisors (see below), whose sum is σ = 28539672000. Its totient is φ = 9007126128.

The previous prime is 18520199989. The next prime is 18520200019. The reversal of 18520200002 is 20000202581.

It is a super-2 number, since 2×18520200002² (a number of 21 digits) contains 22 as substring.

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, 223163 + ... + 294689.

It is an arithmetic number, because the mean of its divisors is an integer number (1783729500).

Almost surely, 2^18520200002 is an apocalyptic number.

18520200002 is a deficient number, since it is larger than the sum of its proper divisors (10019471998).

18520200002 is a wasteful number, since it uses less digits than its factorization.

18520200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75065.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 18520200002 its reverse (20000202581), we get a palindrome (38520402583).

The spelling of 18520200002 in words is "eighteen billion, five hundred twenty million, two hundred thousand, two".