20042404205152 has 72 divisors (see below), whose sum is σ = 45918491756760. Its totient is φ = 8586269475840.

The previous prime is 20042404205149. The next prime is 20042404205171. The reversal of 20042404205152 is 25150240424002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1565752 + ... + 6521992.

It is an arithmetic number, because the mean of its divisors is an integer number (637756829955).

Almost surely, 2^{20042404205152} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20042404205152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22959245878380).

20042404205152 is an abundant number, since it is smaller than the sum of its proper divisors (25876087551608).

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

20042404205152 is a wasteful number, since it uses less digits than its factorization.

20042404205152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4958844 (or 4958829 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 20042404205152 its reverse (25150240424002), we get a palindrome (45192644629154).

The spelling of 20042404205152 in words is "twenty trillion, forty-two billion, four hundred four million, two hundred five thousand, one hundred fifty-two".