1366186600161 has 24 divisors (see below), whose sum is σ = 2002490133696. Its totient is φ = 897372782880.

The previous prime is 1366186600123. The next prime is 1366186600199. The reversal of 1366186600161 is 1610066816631.

1366186600161 is a `hidden beast` number, since 1 + 36 + 6 + 1 + 8 + 6 + 600 + 1 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1366186600123) and next prime (1366186600199).

It is not a de Polignac number, because 1366186600161 - 2¹⁰ = 1366186599137 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1366186600111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271291 + ... + 1675103.

It is an arithmetic number, because the mean of its divisors is an integer number (83437088904).

Almost surely, 2^{1366186600161} is an apocalyptic number.

It is an amenable number.

1366186600161 is a deficient number, since it is larger than the sum of its proper divisors (636303533535).

1366186600161 is a wasteful number, since it uses less digits than its factorization.

1366186600161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405413 (or 1405410 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 1366186600161 in words is "one trillion, three hundred sixty-six billion, one hundred eighty-six million, six hundred thousand, one hundred sixty-one".