20035404505204 has 24 divisors (see below), whose sum is σ = 38336537131200. Its totient is φ = 9086257159680.

The previous prime is 20035404505177. The next prime is 20035404505211. The reversal of 20035404505204 is 40250540453002.

It is a self number, because there is not a number n which added to its sum of digits gives 20035404505204.

It is a congruent number.

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, 518602669 + ... + 518641300.

It is an arithmetic number, because the mean of its divisors is an integer number (1597355713800).

Almost surely, 2^{20035404505204} is an apocalyptic number.

It is an amenable number.

20035404505204 is a deficient number, since it is larger than the sum of its proper divisors (18301132625996).

20035404505204 is a wasteful number, since it uses less digits than its factorization.

20035404505204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037244423 (or 1037244421 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 20035404505204 its reverse (40250540453002), we get a palindrome (60285944958206).

The spelling of 20035404505204 in words is "twenty trillion, thirty-five billion, four hundred four million, five hundred five thousand, two hundred four".