20335212504 has 24 divisors (see below), whose sum is σ = 55074534060. Its totient is φ = 6778404144.

The previous prime is 20335212463. The next prime is 20335212509. The reversal of 20335212504 is 40521253302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20335212509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141216682 + ... + 141216825.

Almost surely, 2^20335212504 is an apocalyptic number.

20335212504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20335212504 is an abundant number, since it is smaller than the sum of its proper divisors (34739321556).

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

20335212504 is a wasteful number, since it uses less digits than its factorization.

20335212504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282433519 (or 282433512 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 20335212504 its reverse (40521253302), we get a palindrome (60856465806).

The spelling of 20335212504 in words is "twenty billion, three hundred thirty-five million, two hundred twelve thousand, five hundred four".