266675861376 has 96 divisors (see below), whose sum is σ = 768436916520. Its totient is φ = 88770401280.

The previous prime is 266675861329. The next prime is 266675861393. The reversal of 266675861376 is 673168576662.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×266675861376² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 686511 + ... + 1002321.

Almost surely, 2^266675861376 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 266675861376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384218458260).

266675861376 is an abundant number, since it is smaller than the sum of its proper divisors (501761055144).

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

266675861376 is a wasteful number, since it uses less digits than its factorization.

266675861376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316564 (or 316549 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 266675861376 in words is "two hundred sixty-six billion, six hundred seventy-five million, eight hundred sixty-one thousand, three hundred seventy-six".