163869709663 has 16 divisors (see below), whose sum is σ = 181792998432. Its totient is φ = 146453328000.

The previous prime is 163869709643. The next prime is 163869709709. The reversal of 163869709663 is 366907968361.

It is a cyclic number.

It is not a de Polignac number, because 163869709663 - 2⁵ = 163869709631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163869709595 and 163869709604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163869709643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233873 + ... + 1360213.

It is an arithmetic number, because the mean of its divisors is an integer number (11362062402).

Almost surely, 2^163869709663 is an apocalyptic number.

163869709663 is a deficient number, since it is larger than the sum of its proper divisors (17923288769).

163869709663 is a wasteful number, since it uses less digits than its factorization.

163869709663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128346.

The product of its (nonzero) digits is 52907904, while the sum is 64.

The spelling of 163869709663 in words is "one hundred sixty-three billion, eight hundred sixty-nine million, seven hundred nine thousand, six hundred sixty-three".