20540323204 has 24 divisors (see below), whose sum is σ = 36654000768. Its totient is φ = 10068071520.

The previous prime is 20540323183. The next prime is 20540323229. The reversal of 20540323204 is 40232304502.

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, 221619 + ... + 300325.

It is an arithmetic number, because the mean of its divisors is an integer number (1527250032).

Almost surely, 2^20540323204 is an apocalyptic number.

It is an amenable number.

20540323204 is a deficient number, since it is larger than the sum of its proper divisors (16113677564).

20540323204 is a wasteful number, since it uses less digits than its factorization.

20540323204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79995 (or 79993 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20540323204 its reverse (40232304502), we get a palindrome (60772627706).

The spelling of 20540323204 in words is "twenty billion, five hundred forty million, three hundred twenty-three thousand, two hundred four".