266640240096 has 240 divisors, whose sum is σ = 790352640000. Its totient is φ = 88183510272.

The previous prime is 266640240089. The next prime is 266640240103. The reversal of 266640240096 is 690042046662.

It is an interprime number because it is at equal distance from previous prime (266640240089) and next prime (266640240103).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 308968561 + ... + 308969423.

It is an arithmetic number, because the mean of its divisors is an integer number (3293136000).

Almost surely, 2^266640240096 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 266640240096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395176320000).

266640240096 is an abundant number, since it is smaller than the sum of its proper divisors (523712399904).

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

266640240096 is a wasteful number, since it uses less digits than its factorization.

266640240096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 266640240096 in words is "two hundred sixty-six billion, six hundred forty million, two hundred forty thousand, ninety-six".