20303289202663 has 32 divisors (see below), whose sum is σ = 20966189916672. Its totient is φ = 19649961072000.

The previous prime is 20303289202657. The next prime is 20303289202681. The reversal of 20303289202663 is 36620298230302.

It is a cyclic number.

It is not a de Polignac number, because 20303289202663 - 2⁹ = 20303289202151 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 (20303289232663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3794295438 + ... + 3794300788.

It is an arithmetic number, because the mean of its divisors is an integer number (655193434896).

Almost surely, 2^{20303289202663} is an apocalyptic number.

20303289202663 is a deficient number, since it is larger than the sum of its proper divisors (662900714009).

20303289202663 is a wasteful number, since it uses less digits than its factorization.

20303289202663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255.

The product of its (nonzero) digits is 1119744, while the sum is 46.

The spelling of 20303289202663 in words is "twenty trillion, three hundred three billion, two hundred eighty-nine million, two hundred two thousand, six hundred sixty-three".