1366411266 has 48 divisors (see below), whose sum is σ = 3277935648. Its totient is φ = 407880000.

The previous prime is 1366411237. The next prime is 1366411271. The reversal of 1366411266 is 6621146631.

It is a happy number.

1366411266 is a `hidden beast` number, since 1 + 3 + 6 + 641 + 1 + 2 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1366411266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38235 + ... + 64766.

It is an arithmetic number, because the mean of its divisors is an integer number (68290326).

Almost surely, 2^1366411266 is an apocalyptic number.

1366411266 is an abundant number, since it is smaller than the sum of its proper divisors (1911524382).

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

1366411266 is a wasteful number, since it uses less digits than its factorization.

1366411266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103087 (or 103084 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 1366411266 is about 36965.0005545787. Note that the first 3 decimals coincide. The cubic root of 1366411266 is about 1109.6699140248.

Adding to 1366411266 its reverse (6621146631), we get a palindrome (7987557897).

The spelling of 1366411266 in words is "one billion, three hundred sixty-six million, four hundred eleven thousand, two hundred sixty-six".