20042404205151 has 32 divisors (see below), whose sum is σ = 27239302195200. Its totient is φ = 13104620242560.

The previous prime is 20042404205149. The next prime is 20042404205171. The reversal of 20042404205151 is 15150240424002.

It is not a de Polignac number, because 20042404205151 - 2¹ = 20042404205149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042404205171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391756665 + ... + 391807821.

It is an arithmetic number, because the mean of its divisors is an integer number (851228193600).

Almost surely, 2^{20042404205151} is an apocalyptic number.

20042404205151 is a deficient number, since it is larger than the sum of its proper divisors (7196897990049).

20042404205151 is a wasteful number, since it uses less digits than its factorization.

20042404205151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56319.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 20042404205151 its reverse (15150240424002), we get a palindrome (35192644629153).

The spelling of 20042404205151 in words is "twenty trillion, forty-two billion, four hundred four million, two hundred five thousand, one hundred fifty-one".