20005394442755 has 8 divisors (see below), whose sum is σ = 24780875697024. Its totient is φ = 15488047310400.

The previous prime is 20005394442751. The next prime is 20005394442833. The reversal of 20005394442755 is 55724449350002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20005394442755 - 2² = 20005394442751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20005394442751) by changing a digit.

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, 64533530306 + ... + 64533530615.

It is an arithmetic number, because the mean of its divisors is an integer number (3097609462128).

Almost surely, 2^{20005394442755} is an apocalyptic number.

20005394442755 is a deficient number, since it is larger than the sum of its proper divisors (4775481254269).

20005394442755 is a wasteful number, since it uses less digits than its factorization.

20005394442755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129067060957.

The product of its (nonzero) digits is 6048000, while the sum is 50.

The spelling of 20005394442755 in words is "twenty trillion, five billion, three hundred ninety-four million, four hundred forty-two thousand, seven hundred fifty-five".