803663204643 has 12 divisors (see below), whose sum is σ = 1250142762960. Its totient is φ = 494561972016.

The previous prime is 803663204633. The next prime is 803663204651. The reversal of 803663204643 is 346402366308.

803663204643 is a `hidden beast` number, since 8 + 0 + 3 + 6 + 632 + 0 + 4 + 6 + 4 + 3 = 666.

803663204643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 803663204643 - 2⁶ = 803663204579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (803663204633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3434458023 + ... + 3434458256.

It is an arithmetic number, because the mean of its divisors is an integer number (104178563580).

Almost surely, 2^803663204643 is an apocalyptic number.

803663204643 is a deficient number, since it is larger than the sum of its proper divisors (446479558317).

803663204643 is a wasteful number, since it uses less digits than its factorization.

803663204643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868916298 (or 6868916295 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 803663204643 in words is "eight hundred three billion, six hundred sixty-three million, two hundred four thousand, six hundred forty-three".