266755110216 has 64 divisors (see below), whose sum is σ = 772598006400. Its totient is φ = 75171691008.

The previous prime is 266755110137. The next prime is 266755110277. The reversal of 266755110216 is 612011557662.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 15 ways as a sum of consecutive naturals, for example, 10863271 + ... + 10887798.

It is an arithmetic number, because the mean of its divisors is an integer number (12071843850).

Almost surely, 2^266755110216 is an apocalyptic number.

It is an amenable number.

266755110216 is an abundant number, since it is smaller than the sum of its proper divisors (505842896184).

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

266755110216 is a wasteful number, since it uses less digits than its factorization.

266755110216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21751158 (or 21751154 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

Adding to 266755110216 its reverse (612011557662), we get a palindrome (878766667878).

The spelling of 266755110216 in words is "two hundred sixty-six billion, seven hundred fifty-five million, one hundred ten thousand, two hundred sixteen".