266412641 has 4 divisors (see below), whose sum is σ = 290631984. Its totient is φ = 242193300.

The previous prime is 266412631. The next prime is 266412701. The reversal of 266412641 is 146214662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 266412641 - 2⁶ = 266412577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266412598 and 266412607.

It is not an unprimeable number, because it can be changed into a prime (266412631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12109655 + ... + 12109676.

It is an arithmetic number, because the mean of its divisors is an integer number (72657996).

Almost surely, 2^266412641 is an apocalyptic number.

It is an amenable number.

266412641 is a deficient number, since it is larger than the sum of its proper divisors (24219343).

266412641 is a wasteful number, since it uses less digits than its factorization.

266412641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24219342.

The product of its digits is 13824, while the sum is 32.

The square root of 266412641 is about 16322.1518495571. The cubic root of 266412641 is about 643.4551422342.

The spelling of 266412641 in words is "two hundred sixty-six million, four hundred twelve thousand, six hundred forty-one".