20012045552 has 80 divisors (see below), whose sum is σ = 40900423872. Its totient is φ = 9473034240.

The previous prime is 20012045539. The next prime is 20012045563. The reversal of 20012045552 is 25554021002.

It is a congruent number.

It is an unprimeable number.

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, 11819618 + ... + 11821310.

Almost surely, 2^20012045552 is an apocalyptic number.

It is an amenable number.

20012045552 is an abundant number, since it is smaller than the sum of its proper divisors (20888378320).

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

20012045552 is a wasteful number, since it uses less digits than its factorization.

20012045552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266 (or 2260 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 20012045552 its reverse (25554021002), we get a palindrome (45566066554).

The spelling of 20012045552 in words is "twenty billion, twelve million, forty-five thousand, five hundred fifty-two".