266081344 has 21 divisors (see below), whose sum is σ = 528264247. Its totient is φ = 132975424.

The previous prime is 266081323. The next prime is 266081371. The reversal of 266081344 is 443180662.

The square root of 266081344 is 16312.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 129477 + ... + 131515.

Almost surely, 2^266081344 is an apocalyptic number.

266081344 is the 16312-nd square number.

It is an amenable number.

266081344 is a deficient number, since it is larger than the sum of its proper divisors (262182903).

266081344 is an frugal number, since it uses more digits than its factorization.

266081344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The cubic root of 266081344 is about 643.1883090703.

The spelling of 266081344 in words is "two hundred sixty-six million, eighty-one thousand, three hundred forty-four".