20013770204424 has 64 divisors (see below), whose sum is σ = 55606770648000. Its totient is φ = 6669700992000.

The previous prime is 20013770204377. The next prime is 20013770204497. The reversal of 20013770204424 is 42440207731002.

20013770204424 is a `hidden beast` number, since 20 + 0 + 1 + 3 + 7 + 7 + 0 + 204 + 424 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9875202 + ... + 11728049.

It is an arithmetic number, because the mean of its divisors is an integer number (868855791375).

Almost surely, 2^{20013770204424} is an apocalyptic number.

20013770204424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20013770204424 is an abundant number, since it is smaller than the sum of its proper divisors (35593000443576).

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

20013770204424 is a wasteful number, since it uses less digits than its factorization.

20013770204424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21607555 (or 21607545 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

Adding to 20013770204424 its reverse (42440207731002), we get a palindrome (62453977935426).

The spelling of 20013770204424 in words is "twenty trillion, thirteen billion, seven hundred seventy million, two hundred four thousand, four hundred twenty-four".