266155511015328 has 192 divisors, whose sum is σ = 775793691187200. Its totient is φ = 79214279260160.

The previous prime is 266155511015291. The next prime is 266155511015411. The reversal of 266155511015328 is 823510115551662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66784828 + ... + 70657796.

It is an arithmetic number, because the mean of its divisors is an integer number (4040592141600).

Almost surely, 2^{266155511015328} 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 266155511015328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387896845593600).

266155511015328 is an abundant number, since it is smaller than the sum of its proper divisors (509638180171872).

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

266155511015328 is a wasteful number, since it uses less digits than its factorization.

266155511015328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874155 (or 3874147 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 51.

The spelling of 266155511015328 in words is "two hundred sixty-six trillion, one hundred fifty-five billion, five hundred eleven million, fifteen thousand, three hundred twenty-eight".