20544033230 has 64 divisors (see below), whose sum is σ = 43869192192. Its totient is φ = 6780723840.

The previous prime is 20544033149. The next prime is 20544033241. The reversal of 20544033230 is 3233044502.

It is a self number, because there is not a number n which added to its sum of digits gives 20544033230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149507 + ... + 251873.

It is an arithmetic number, because the mean of its divisors is an integer number (685456128).

Almost surely, 2^20544033230 is an apocalyptic number.

20544033230 is an abundant number, since it is smaller than the sum of its proper divisors (23325158962).

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

20544033230 is a wasteful number, since it uses less digits than its factorization.

20544033230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102489.

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 20544033230 its reverse (3233044502), we get a palindrome (23777077732).

The spelling of 20544033230 in words is "twenty billion, five hundred forty-four million, thirty-three thousand, two hundred thirty".