5665600166601 has 16 divisors (see below), whose sum is σ = 7572494329920. Its totient is φ = 3767887381440.

The previous prime is 5665600166591. The next prime is 5665600166627. The reversal of 5665600166601 is 1066610065665.

It is not a de Polignac number, because 5665600166601 - 2⁶ = 5665600166537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5665600161601) 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 15 ways as a sum of consecutive naturals, for example, 24778666 + ... + 25006268.

It is an arithmetic number, because the mean of its divisors is an integer number (473280895620).

Almost surely, 2^{5665600166601} is an apocalyptic number.

It is an amenable number.

5665600166601 is a deficient number, since it is larger than the sum of its proper divisors (1906894163319).

5665600166601 is a wasteful number, since it uses less digits than its factorization.

5665600166601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247736.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 5665600166601 in words is "five trillion, six hundred sixty-five billion, six hundred million, one hundred sixty-six thousand, six hundred one".