208112013663 has 16 divisors (see below), whose sum is σ = 292126648320. Its totient is φ = 131421341376.

The previous prime is 208112013607. The next prime is 208112013679. The reversal of 208112013663 is 366310211802.

208112013663 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 208112013663 - 2²⁵ = 208078459231 is a prime.

It is a super-2 number, since 2×208112013663² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208112013763) 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 in 15 ways as a sum of consecutive naturals, for example, 182931 + ... + 670587.

It is an arithmetic number, because the mean of its divisors is an integer number (18257915520).

Almost surely, 2^208112013663 is an apocalyptic number.

208112013663 is a deficient number, since it is larger than the sum of its proper divisors (84014634657).

208112013663 is a wasteful number, since it uses less digits than its factorization.

208112013663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495166.

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 208112013663 in words is "two hundred eight billion, one hundred twelve million, thirteen thousand, six hundred sixty-three".