266013201 has 32 divisors (see below), whose sum is σ = 386104320. Its totient is φ = 162489600.

The previous prime is 266013199. The next prime is 266013203. The reversal of 266013201 is 102310662.

It is a happy number.

266013201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (266013199) and next prime (266013203).

It is not a de Polignac number, because 266013201 - 2¹ = 266013199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266013203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142011 + ... + 143871.

It is an arithmetic number, because the mean of its divisors is an integer number (12065760).

Almost surely, 2^266013201 is an apocalyptic number.

It is an amenable number.

266013201 is a deficient number, since it is larger than the sum of its proper divisors (120091119).

266013201 is a wasteful number, since it uses less digits than its factorization.

266013201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 266013201 is about 16309.9111279001. The cubic root of 266013201 is about 643.1333978887.

Adding to 266013201 its reverse (102310662), we get a palindrome (368323863).

The spelling of 266013201 in words is "two hundred sixty-six million, thirteen thousand, two hundred one".