266255998 has 8 divisors (see below), whose sum is σ = 403338600. Its totient is φ = 131809800.

The previous prime is 266255971. The next prime is 266255999. The reversal of 266255998 is 899552662.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266255999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658848 + ... + 659251.

It is an arithmetic number, because the mean of its divisors is an integer number (50417325).

Almost surely, 2^266255998 is an apocalyptic number.

266255998 is a deficient number, since it is larger than the sum of its proper divisors (137082602).

266255998 is a wasteful number, since it uses less digits than its factorization.

266255998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318202.

The product of its digits is 2332800, while the sum is 52.

The square root of 266255998 is about 16317.3526651844. The cubic root of 266255998 is about 643.3290064468.

It can be divided in two parts, 26625 and 5998, that added together give a palindrome (32623).

The spelling of 266255998 in words is "two hundred sixty-six million, two hundred fifty-five thousand, nine hundred ninety-eight".