266153225323168 has 96 divisors (see below), whose sum is σ = 544911915147264. Its totient is φ = 127887472484352.

The previous prime is 266153225323147. The next prime is 266153225323169. The reversal of 266153225323168 is 861323522351662.

It is not an unprimeable number, because it can be changed into a prime (266153225323169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11345230 + ... + 25710322.

It is an arithmetic number, because the mean of its divisors is an integer number (5676165782784).

Almost surely, 2^{266153225323168} 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 266153225323168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272455957573632).

266153225323168 is an abundant number, since it is smaller than the sum of its proper divisors (278758689824096).

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

266153225323168 is a wasteful number, since it uses less digits than its factorization.

266153225323168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14365374 (or 14365366 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 55.

The spelling of 266153225323168 in words is "two hundred sixty-six trillion, one hundred fifty-three billion, two hundred twenty-five million, three hundred twenty-three thousand, one hundred sixty-eight".