20004357543751 has 16 divisors (see below), whose sum is σ = 23204036127744. Its totient is φ = 16890172431264.

The previous prime is 20004357543691. The next prime is 20004357543787. The reversal of 20004357543751 is 15734575340002.

It is a cyclic number.

It is not a de Polignac number, because 20004357543751 - 2⁷ = 20004357543623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004357543551) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15661161 + ... + 16890253.

It is an arithmetic number, because the mean of its divisors is an integer number (1450252257984).

Almost surely, 2^{20004357543751} is an apocalyptic number.

20004357543751 is a deficient number, since it is larger than the sum of its proper divisors (3199678583993).

20004357543751 is a wasteful number, since it uses less digits than its factorization.

20004357543751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263870.

The product of its (nonzero) digits is 1764000, while the sum is 46.

The spelling of 20004357543751 in words is "twenty trillion, four billion, three hundred fifty-seven million, five hundred forty-three thousand, seven hundred fifty-one".