20024236455 has 16 divisors (see below), whose sum is σ = 32053534080. Its totient is φ = 10674674208.

The previous prime is 20024236417. The next prime is 20024236459. The reversal of 20024236455 is 55463242002.

It is a happy number.

It is not a de Polignac number, because 20024236455 - 2¹⁰ = 20024235431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20024236459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273637 + ... + 339006.

It is an arithmetic number, because the mean of its divisors is an integer number (2003345880).

Almost surely, 2^20024236455 is an apocalyptic number.

20024236455 is a deficient number, since it is larger than the sum of its proper divisors (12029297625).

20024236455 is a wasteful number, since it uses less digits than its factorization.

20024236455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614830.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 20024236455 its reverse (55463242002), we get a palindrome (75487478457).

The spelling of 20024236455 in words is "twenty billion, twenty-four million, two hundred thirty-six thousand, four hundred fifty-five".