266974961 has 16 divisors (see below), whose sum is σ = 304680960. Its totient is φ = 231562320.

The previous prime is 266974949. The next prime is 266974963. The reversal of 266974961 is 169479662.

It is not a de Polignac number, because 266974961 - 2²² = 262780657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266974963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120086 + ... + 122288.

It is an arithmetic number, because the mean of its divisors is an integer number (19042560).

Almost surely, 2^266974961 is an apocalyptic number.

It is an amenable number.

266974961 is a deficient number, since it is larger than the sum of its proper divisors (37705999).

266974961 is a wasteful number, since it uses less digits than its factorization.

266974961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716.

The product of its digits is 979776, while the sum is 50.

The square root of 266974961 is about 16339.3684394471. The cubic root of 266974961 is about 643.9075399647.

The spelling of 266974961 in words is "two hundred sixty-six million, nine hundred seventy-four thousand, nine hundred sixty-one".