266712876 has 72 divisors (see below), whose sum is σ = 707572320. Its totient is φ = 84547584.

The previous prime is 266712869. The next prime is 266712877. The reversal of 266712876 is 678217662.

It is a super-2 number, since 2×266712876² = 142271516448382752, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266712877) 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, 158970 + ... + 160638.

Almost surely, 2^266712876 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 266712876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353786160).

266712876 is an abundant number, since it is smaller than the sum of its proper divisors (440859444).

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

266712876 is a wasteful number, since it uses less digits than its factorization.

266712876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895 (or 1890 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 266712876 is about 16331.3464233663. The cubic root of 266712876 is about 643.6967664405.

The spelling of 266712876 in words is "two hundred sixty-six million, seven hundred twelve thousand, eight hundred seventy-six".