266755568 has 20 divisors (see below), whose sum is σ = 547241760. Its totient is φ = 125531904.

The previous prime is 266755549. The next prime is 266755571. The reversal of 266755568 is 865557662.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490088 + ... + 490631.

It is an arithmetic number, because the mean of its divisors is an integer number (27362088).

Almost surely, 2^266755568 is an apocalyptic number.

It is an amenable number.

266755568 is an abundant number, since it is smaller than the sum of its proper divisors (280486192).

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

266755568 is a wasteful number, since it uses less digits than its factorization.

266755568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980744 (or 980738 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 50.

The square root of 266755568 is about 16332.6534280257. The cubic root of 266755568 is about 643.7311095346.

The spelling of 266755568 in words is "two hundred sixty-six million, seven hundred fifty-five thousand, five hundred sixty-eight".