20413166205615 has 16 divisors (see below), whose sum is σ = 32668473852000. Its totient is φ = 10884552668672.

The previous prime is 20413166205587. The next prime is 20413166205629. The reversal of 20413166205615 is 51650266131402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20413166205615 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154263390 + ... + 154395659.

It is an arithmetic number, because the mean of its divisors is an integer number (2041779615750).

Almost surely, 2^{20413166205615} is an apocalyptic number.

20413166205615 is a deficient number, since it is larger than the sum of its proper divisors (12255307646385).

20413166205615 is a wasteful number, since it uses less digits than its factorization.

20413166205615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308663466.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 20413166205615 in words is "twenty trillion, four hundred thirteen billion, one hundred sixty-six million, two hundred five thousand, six hundred fifteen".