20013721544152 has 32 divisors (see below), whose sum is σ = 42929822315520. Its totient is φ = 8568654003360.

The previous prime is 20013721544143. The next prime is 20013721544209. The reversal of 20013721544152 is 25144512731002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180261298 + ... + 180372289.

It is an arithmetic number, because the mean of its divisors is an integer number (1341556947360).

Almost surely, 2^{20013721544152} is an apocalyptic number.

It is an amenable number.

20013721544152 is an abundant number, since it is smaller than the sum of its proper divisors (22916100771368).

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

20013721544152 is a wasteful number, since it uses less digits than its factorization.

20013721544152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360634591 (or 360634587 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 20013721544152 in words is "twenty trillion, thirteen billion, seven hundred twenty-one million, five hundred forty-four thousand, one hundred fifty-two".