163803604651 has 2 divisors, whose sum is σ = 163803604652. Its totient is φ = 163803604650.

The previous prime is 163803604621. The next prime is 163803604693. The reversal of 163803604651 is 156406308361.

163803604651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163803604651 - 2¹⁷ = 163803473579 is a prime.

It is a super-2 number, since 2×163803604651² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163803604598 and 163803604607.

It is not a weakly prime, because it can be changed into another prime (163803604621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81901802325 + 81901802326.

It is an arithmetic number, because the mean of its divisors is an integer number (81901802326).

Almost surely, 2^163803604651 is an apocalyptic number.

163803604651 is a deficient number, since it is larger than the sum of its proper divisors (1).

163803604651 is an equidigital number, since it uses as much as digits as its factorization.

163803604651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 163803604651 in words is "one hundred sixty-three billion, eight hundred three million, six hundred four thousand, six hundred fifty-one".