20004420630546 has 128 divisors (see below), whose sum is σ = 49681852416000. Its totient is φ = 5913680400000.

The previous prime is 20004420630527. The next prime is 20004420630577. The reversal of 20004420630546 is 64503602440002.

20004420630546 is a `hidden beast` number, since 20 + 0 + 0 + 44 + 20 + 6 + 30 + 546 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20004420630546.

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 63 ways as a sum of consecutive naturals, for example, 675833055 + ... + 675862653.

It is an arithmetic number, because the mean of its divisors is an integer number (388139472000).

Almost surely, 2^{20004420630546} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20004420630546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24840926208000).

20004420630546 is an abundant number, since it is smaller than the sum of its proper divisors (29677431785454).

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

20004420630546 is a wasteful number, since it uses less digits than its factorization.

20004420630546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57413 (or 57407 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 20004420630546 in words is "twenty trillion, four billion, four hundred twenty million, six hundred thirty thousand, five hundred forty-six".