266713853616 has 240 divisors, whose sum is σ = 867888909888. Its totient is φ = 74881843200.

The previous prime is 266713853603. The next prime is 266713853657. The reversal of 266713853616 is 616358317662.

266713853616 is a `hidden beast` number, since 2 + 6 + 6 + 7 + 13 + 8 + 5 + 3 + 616 = 666.

266713853616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266713853616² (a number of 24 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 109262956 + ... + 109265396.

Almost surely, 2^266713853616 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 266713853616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433944454944).

266713853616 is an abundant number, since it is smaller than the sum of its proper divisors (601175056272).

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

266713853616 is a wasteful number, since it uses less digits than its factorization.

266713853616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300 (or 4291 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 266713853616 in words is "two hundred sixty-six billion, seven hundred thirteen million, eight hundred fifty-three thousand, six hundred sixteen".