266255601 has 8 divisors (see below), whose sum is σ = 359870880. Its totient is φ = 175072032.

The previous prime is 266255573. The next prime is 266255629. The reversal of 266255601 is 106552662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (266255573) and next prime (266255629).

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

It is not a de Polignac number, because 266255601 - 2⁶ = 266255537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266255651) 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, 607671 + ... + 608108.

It is an arithmetic number, because the mean of its divisors is an integer number (44983860).

Almost surely, 2^266255601 is an apocalyptic number.

It is an amenable number.

266255601 is a deficient number, since it is larger than the sum of its proper divisors (93615279).

266255601 is a wasteful number, since it uses less digits than its factorization.

266255601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215855.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 266255601 is about 16317.3405002163. The cubic root of 266255601 is about 643.3286867022.

The spelling of 266255601 in words is "two hundred sixty-six million, two hundred fifty-five thousand, six hundred one".