266044006263616 has 168 divisors, whose sum is σ = 621078645470400. Its totient is φ = 112727860439040.

The previous prime is 266044006263613. The next prime is 266044006263683. The reversal of 266044006263616 is 616362600440662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266044006263613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3801082381 + ... + 3801152371.

Almost surely, 2^{266044006263616} 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 266044006263616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310539322735200).

266044006263616 is an abundant number, since it is smaller than the sum of its proper divisors (355034639206784).

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

266044006263616 is a wasteful number, since it uses less digits than its factorization.

266044006263616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83725 (or 83708 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 52.

The spelling of 266044006263616 in words is "two hundred sixty-six trillion, forty-four billion, six million, two hundred sixty-three thousand, six hundred sixteen".