266412251 has 8 divisors (see below), whose sum is σ = 304617984. Its totient is φ = 228243240.

The previous prime is 266412191. The next prime is 266412257. The reversal of 266412251 is 152214662.

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

It is a cyclic number.

It is not a de Polignac number, because 266412251 - 2²² = 262217947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266412257) 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, 8696 + ... + 24666.

It is an arithmetic number, because the mean of its divisors is an integer number (38077248).

Almost surely, 2^266412251 is an apocalyptic number.

266412251 is a deficient number, since it is larger than the sum of its proper divisors (38205733).

266412251 is a wasteful number, since it uses less digits than its factorization.

266412251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18361.

The product of its digits is 5760, while the sum is 29.

The square root of 266412251 is about 16322.1399025986. The cubic root of 266412251 is about 643.4548282506.

The spelling of 266412251 in words is "two hundred sixty-six million, four hundred twelve thousand, two hundred fifty-one".