208677265311112 has 256 divisors, whose sum is σ = 461091113280000. Its totient is φ = 87768360345600.

The previous prime is 208677265311103. The next prime is 208677265311131. The reversal of 208677265311112 is 211113562776802.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 208677265311112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 831427014 + ... + 831677962.

It is an arithmetic number, because the mean of its divisors is an integer number (1801137161250).

Almost surely, 2^{208677265311112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208677265311112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230545556640000).

208677265311112 is an abundant number, since it is smaller than the sum of its proper divisors (252413847968888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208677265311112 is a wasteful number, since it uses less digits than its factorization.

208677265311112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251232 (or 251228 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 208677265311112 in words is "two hundred eight trillion, six hundred seventy-seven billion, two hundred sixty-five million, three hundred eleven thousand, one hundred twelve".