20435333422504 has 128 divisors (see below), whose sum is σ = 51456912353280. Its totient is φ = 7347753849600.

The previous prime is 20435333422391. The next prime is 20435333422507. The reversal of 20435333422504 is 40522433353402.

It is not an unprimeable number, because it can be changed into a prime (20435333422507) 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, 36422259 + ... + 36979069.

It is an arithmetic number, because the mean of its divisors is an integer number (402007127760).

Almost surely, 2^{20435333422504} 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 20435333422504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25728456176640).

20435333422504 is an abundant number, since it is smaller than the sum of its proper divisors (31021578930776).

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

20435333422504 is a wasteful number, since it uses less digits than its factorization.

20435333422504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561431 (or 561427 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 40.

Adding to 20435333422504 its reverse (40522433353402), we get a palindrome (60957766775906).

The spelling of 20435333422504 in words is "twenty trillion, four hundred thirty-five billion, three hundred thirty-three million, four hundred twenty-two thousand, five hundred four".