208866616883011 has 4 divisors (see below), whose sum is σ = 208867001791392. Its totient is φ = 208866231974632.

The previous prime is 208866616882927. The next prime is 208866616883027. The reversal of 208866616883011 is 110388616668802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 208866616883011 - 2¹¹ = 208866616880963 is a prime.

It is a super-2 number, since 2×208866616883011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208866626883011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191639080 + ... + 192725893.

It is an arithmetic number, because the mean of its divisors is an integer number (52216750447848).

Almost surely, 2^{208866616883011} is an apocalyptic number.

208866616883011 is a deficient number, since it is larger than the sum of its proper divisors (384908381).

208866616883011 is an equidigital number, since it uses as much as digits as its factorization.

208866616883011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384908380.

The product of its (nonzero) digits is 31850496, while the sum is 64.

The spelling of 208866616883011 in words is "two hundred eight trillion, eight hundred sixty-six billion, six hundred sixteen million, eight hundred eighty-three thousand, eleven".