1266201163113 has 16 divisors (see below), whose sum is σ = 1724276367360. Its totient is φ = 826131857936.

The previous prime is 1266201163093. The next prime is 1266201163133. The reversal of 1266201163113 is 3113611026621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1266201163093) and next prime (1266201163133).

It is a cyclic number.

It is not a de Polignac number, because 1266201163113 - 2⁵ = 1266201163081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1266201163133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2690728 + ... + 3126086.

It is an arithmetic number, because the mean of its divisors is an integer number (107767272960).

Almost surely, 2^{1266201163113} is an apocalyptic number.

It is an amenable number.

1266201163113 is a deficient number, since it is larger than the sum of its proper divisors (458075204247).

1266201163113 is a wasteful number, since it uses less digits than its factorization.

1266201163113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456036.

The product of its (nonzero) digits is 7776, while the sum is 33.

Adding to 1266201163113 its reverse (3113611026621), we get a palindrome (4379812189734).

The spelling of 1266201163113 in words is "one trillion, two hundred sixty-six billion, two hundred one million, one hundred sixty-three thousand, one hundred thirteen".