208665093892 has 6 divisors (see below), whose sum is σ = 365163914318. Its totient is φ = 104332546944.

The previous prime is 208665093887. The next prime is 208665093899. The reversal of 208665093892 is 298390566802.

It is a happy number.

208665093892 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 116706957376 + 91958136516 = 341624^2 + 303246^2 .

It is a super-2 number, since 2×208665093892² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (208665093899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26083136733 + ... + 26083136740.

Almost surely, 2^208665093892 is an apocalyptic number.

It is an amenable number.

208665093892 is a deficient number, since it is larger than the sum of its proper divisors (156498820426).

208665093892 is a wasteful number, since it uses less digits than its factorization.

208665093892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52166273477 (or 52166273475 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 208665093892 in words is "two hundred eight billion, six hundred sixty-five million, ninety-three thousand, eight hundred ninety-two".