208112013664 has 24 divisors (see below), whose sum is σ = 411478998840. Its totient is φ = 103609410816.

The previous prime is 208112013607. The next prime is 208112013679. The reversal of 208112013664 is 466310211802.

It is a super-2 number, since 2×208112013664² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13948554 + ... + 13963465.

It is an arithmetic number, because the mean of its divisors is an integer number (17144958285).

Almost surely, 2^208112013664 is an apocalyptic number.

It is an amenable number.

208112013664 is a deficient number, since it is larger than the sum of its proper divisors (203366985176).

208112013664 is a wasteful number, since it uses less digits than its factorization.

208112013664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27912262 (or 27912254 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 208112013664 in words is "two hundred eight billion, one hundred twelve million, thirteen thousand, six hundred sixty-four".