266106204 has 144 divisors (see below), whose sum is σ = 856739520. Its totient is φ = 67737600.

The previous prime is 266106179. The next prime is 266106259. The reversal of 266106204 is 402601662.

It is a happy number.

266106204 is a `hidden beast` number, since 26 + 6 + 10 + 620 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93604 + ... + 96404.

It is an arithmetic number, because the mean of its divisors is an integer number (5949580).

Almost surely, 2^266106204 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 266106204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428369760).

266106204 is an abundant number, since it is smaller than the sum of its proper divisors (590633316).

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

266106204 is a wasteful number, since it uses less digits than its factorization.

266106204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860 (or 2855 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 266106204 is about 16312.7619978960. The cubic root of 266106204 is about 643.2083394905.

Adding to 266106204 its reverse (402601662), we get a palindrome (668707866).

The spelling of 266106204 in words is "two hundred sixty-six million, one hundred six thousand, two hundred four".