1361323166499 has 32 divisors (see below), whose sum is σ = 2023923720000. Its totient is φ = 904334118912.

The previous prime is 1361323166479. The next prime is 1361323166521. The reversal of 1361323166499 is 9946613231631.

It is a happy number.

1361323166499 is a `hidden beast` number, since 1 + 3 + 6 + 132 + 3 + 16 + 6 + 499 = 666.

It is not a de Polignac number, because 1361323166499 - 2²⁰ = 1361322117923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361323166459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22985577 + ... + 23044725.

It is an arithmetic number, because the mean of its divisors is an integer number (63247616250).

Almost surely, 2^{1361323166499} is an apocalyptic number.

1361323166499 is a deficient number, since it is larger than the sum of its proper divisors (662600553501).

1361323166499 is a wasteful number, since it uses less digits than its factorization.

1361323166499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62164 (or 62158 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The spelling of 1361323166499 in words is "one trillion, three hundred sixty-one billion, three hundred twenty-three million, one hundred sixty-six thousand, four hundred ninety-nine".