266885136 has 120 divisors (see below), whose sum is σ = 857635584. Its totient is φ = 75893760.

The previous prime is 266885119. The next prime is 266885161. The reversal of 266885136 is 631588662.

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 junction number, because it is equal to n+sod(n) for n = 266885091 and 266885100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272680 + ... + 273656.

Almost surely, 2^266885136 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 266885136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428817792).

266885136 is an abundant number, since it is smaller than the sum of its proper divisors (590750448).

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

266885136 is a wasteful number, since it uses less digits than its factorization.

266885136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1260 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 266885136 is about 16336.6194789497. The cubic root of 266885136 is about 643.8353166090.

The spelling of 266885136 in words is "two hundred sixty-six million, eight hundred eighty-five thousand, one hundred thirty-six".