266668000133472 has 576 divisors, whose sum is σ = 902800302243840. Its totient is φ = 75849970420224.

The previous prime is 266668000133453. The next prime is 266668000133503. The reversal of 266668000133472 is 274331000866662.

It is a super-2 number, since 2×266668000133472² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 11063672973 + ... + 11063697075.

It is an arithmetic number, because the mean of its divisors is an integer number (1567361635840).

Almost surely, 2^{266668000133472} 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 266668000133472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451400151121920).

266668000133472 is an abundant number, since it is smaller than the sum of its proper divisors (636132302110368).

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

266668000133472 is a wasteful number, since it uses less digits than its factorization.

266668000133472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25037 (or 25017 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 266668000133472 in words is "two hundred sixty-six trillion, six hundred sixty-eight billion, one hundred thirty-three thousand, four hundred seventy-two".