266620014 has 12 divisors (see below), whose sum is σ = 577676736. Its totient is φ = 88873332.

The previous prime is 266619971. The next prime is 266620019. The reversal of 266620014 is 410026662.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 266620014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266620019) 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, 7406094 + ... + 7406129.

It is an arithmetic number, because the mean of its divisors is an integer number (48139728).

Almost surely, 2^266620014 is an apocalyptic number.

266620014 is an abundant number, since it is smaller than the sum of its proper divisors (311056722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266620014 is a wasteful number, since it uses less digits than its factorization.

266620014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14812231 (or 14812228 counting only the distinct ones).

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

The square root of 266620014 is about 16328.5031157176. The cubic root of 266620014 is about 643.6220520026.

Adding to 266620014 its reverse (410026662), we get a palindrome (676646676).

The spelling of 266620014 in words is "two hundred sixty-six million, six hundred twenty thousand, fourteen".