20413502443204 has 24 divisors (see below), whose sum is σ = 38707622864960. Its totient is φ = 9363815180064.

The previous prime is 20413502443153. The next prime is 20413502443207. The reversal of 20413502443204 is 40234420531402.

It is a super-2 number, since 2×20413502443204² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20413502443204.

It is not an unprimeable number, because it can be changed into a prime (20413502443207) 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, 1204185864 + ... + 1204202815.

Almost surely, 2^{20413502443204} is an apocalyptic number.

It is an amenable number.

20413502443204 is a deficient number, since it is larger than the sum of its proper divisors (18294120421756).

20413502443204 is a wasteful number, since it uses less digits than its factorization.

20413502443204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408388859 (or 2408388857 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 20413502443204 its reverse (40234420531402), we get a palindrome (60647922974606).

The spelling of 20413502443204 in words is "twenty trillion, four hundred thirteen billion, five hundred two million, four hundred forty-three thousand, two hundred four".