20013653426624 has 56 divisors (see below), whose sum is σ = 46657704294768. Its totient is φ = 8397337098240.

The previous prime is 20013653426551. The next prime is 20013653426647. The reversal of 20013653426624 is 42662435631002.

It is a Harshad number since it is a multiple of its sum of digits (44).

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 7 ways as a sum of consecutive naturals, for example, 1093394117 + ... + 1093412420.

It is an arithmetic number, because the mean of its divisors is an integer number (833173290978).

Almost surely, 2^{20013653426624} is an apocalyptic number.

It is an amenable number.

20013653426624 is an abundant number, since it is smaller than the sum of its proper divisors (26644050868144).

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

20013653426624 is a wasteful number, since it uses less digits than its factorization.

20013653426624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186806573 (or 2186806563 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 20013653426624 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, four hundred twenty-six thousand, six hundred twenty-four".