20012304544 has 24 divisors (see below), whose sum is σ = 39466381248. Its totient is φ = 9989096640.

The previous prime is 20012304539. The next prime is 20012304551. The reversal of 20012304544 is 44540321002.

It is a happy number.

It is a super-3 number, since 3×20012304544³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513912 + ... + 551479.

It is an arithmetic number, because the mean of its divisors is an integer number (1644432552).

Almost surely, 2^20012304544 is an apocalyptic number.

It is an amenable number.

20012304544 is a deficient number, since it is larger than the sum of its proper divisors (19454076704).

20012304544 is a wasteful number, since it uses less digits than its factorization.

20012304544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065988 (or 1065980 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20012304544 its reverse (44540321002), we get a palindrome (64552625546).

The spelling of 20012304544 in words is "twenty billion, twelve million, three hundred four thousand, five hundred forty-four".