266140341 has 6 divisors (see below), whose sum is σ = 384424950. Its totient is φ = 177426888.

The previous prime is 266140339. The next prime is 266140387. The reversal of 266140341 is 143041662.

266140341 is a `hidden beast` number, since 2 + 6 + 614 + 0 + 3 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 261954225 + 4186116 = 16185^2 + 2046^2 .

It is not a de Polignac number, because 266140341 - 2¹ = 266140339 is a prime.

It is a super-2 number, since 2×266140341² = 141661362215192562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266140331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14785566 + ... + 14785583.

It is an arithmetic number, because the mean of its divisors is an integer number (64070825).

Almost surely, 2^266140341 is an apocalyptic number.

It is an amenable number.

266140341 is a deficient number, since it is larger than the sum of its proper divisors (118284609).

266140341 is a wasteful number, since it uses less digits than its factorization.

266140341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29571155 (or 29571152 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 266140341 is about 16313.8082923639. The cubic root of 266140341 is about 643.2358426251.

The spelling of 266140341 in words is "two hundred sixty-six million, one hundred forty thousand, three hundred forty-one".