1366999411 has 16 divisors (see below), whose sum is σ = 1445209920. Its totient is φ = 1290453120.

The previous prime is 1366999399. The next prime is 1366999453. The reversal of 1366999411 is 1149996631.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1366999411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1366999481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 733621 + ... + 735481.

It is an arithmetic number, because the mean of its divisors is an integer number (90325620).

Almost surely, 2^1366999411 is an apocalyptic number.

1366999411 is a deficient number, since it is larger than the sum of its proper divisors (78210509).

1366999411 is a wasteful number, since it uses less digits than its factorization.

1366999411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286.

The product of its digits is 314928, while the sum is 49.

The square root of 1366999411 is about 36972.9551293915. The cubic root of 1366999411 is about 1109.8291030895.

The spelling of 1366999411 in words is "one billion, three hundred sixty-six million, nine hundred ninety-nine thousand, four hundred eleven".