1366104192509 has 16 divisors (see below), whose sum is σ = 1615137976320. Its totient is φ = 1130541390720.

The previous prime is 1366104192469. The next prime is 1366104192527. The reversal of 1366104192509 is 9052914016631.

It is a happy number.

It is not a de Polignac number, because 1366104192509 - 2⁸ = 1366104192253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366104192539) 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, 15815492 + ... + 15901634.

It is an arithmetic number, because the mean of its divisors is an integer number (100946123520).

Almost surely, 2^{1366104192509} is an apocalyptic number.

It is an amenable number.

1366104192509 is a deficient number, since it is larger than the sum of its proper divisors (249033783811).

1366104192509 is an equidigital number, since it uses as much as digits as its factorization.

1366104192509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164300.

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 1366104192509 in words is "one trillion, three hundred sixty-six billion, one hundred four million, one hundred ninety-two thousand, five hundred nine".