20013721544151 has 12 divisors (see below), whose sum is σ = 29340182165112. Its totient is φ = 13143339521136.

The previous prime is 20013721544143. The next prime is 20013721544209. The reversal of 20013721544151 is 15144512731002.

20013721544151 is a `hidden beast` number, since 20 + 0 + 1 + 3 + 7 + 215 + 4 + 415 + 1 = 666.

It is not a de Polignac number, because 20013721544151 - 2³ = 20013721544143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013721544051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16595125056 + ... + 16595126261.

It is an arithmetic number, because the mean of its divisors is an integer number (2445015180426).

Almost surely, 2^{20013721544151} is an apocalyptic number.

20013721544151 is a deficient number, since it is larger than the sum of its proper divisors (9326460620961).

20013721544151 is a wasteful number, since it uses less digits than its factorization.

20013721544151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33190251390 (or 33190251387 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 20013721544151 in words is "twenty trillion, thirteen billion, seven hundred twenty-one million, five hundred forty-four thousand, one hundred fifty-one".