266120204 has 24 divisors (see below), whose sum is σ = 543567360. Its totient is φ = 111624336.

The previous prime is 266120203. The next prime is 266120221. The reversal of 266120204 is 402021662.

It is a self number, because there is not a number n which added to its sum of digits gives 266120204.

It is not an unprimeable number, because it can be changed into a prime (266120201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99794 + ... + 102425.

It is an arithmetic number, because the mean of its divisors is an integer number (22648640).

Almost surely, 2^266120204 is an apocalyptic number.

It is an amenable number.

266120204 is an abundant number, since it is smaller than the sum of its proper divisors (277447156).

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

266120204 is a wasteful number, since it uses less digits than its factorization.

266120204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202277 (or 202275 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 266120204 is about 16313.1911041341. The cubic root of 266120204 is about 643.2196191459.

Adding to 266120204 its reverse (402021662), we get a palindrome (668141866).

The spelling of 266120204 in words is "two hundred sixty-six million, one hundred twenty thousand, two hundred four".