20013056044428 has 48 divisors (see below), whose sum is σ = 47232666764640. Its totient is φ = 6594547981824.

The previous prime is 20013056044427. The next prime is 20013056044451. The reversal of 20013056044428 is 82444065031002.

It is a super-2 number, since 2×20013056044428² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20013056044427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2502850 + ... + 6803702.

It is an arithmetic number, because the mean of its divisors is an integer number (984013890930).

Almost surely, 2^{20013056044428} is an apocalyptic number.

It is an amenable number.

20013056044428 is an abundant number, since it is smaller than the sum of its proper divisors (27219610720212).

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

20013056044428 is a wasteful number, since it uses less digits than its factorization.

20013056044428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305306 (or 4305304 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 20013056044428 in words is "twenty trillion, thirteen billion, fifty-six million, forty-four thousand, four hundred twenty-eight".