166055115605 has 8 divisors (see below), whose sum is σ = 207929884032. Its totient is φ = 127068262288.

The previous prime is 166055115599. The next prime is 166055115607. The reversal of 166055115605 is 506511550661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166055115605 - 2⁸ = 166055115349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166055115607) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 721978649 + ... + 721978878.

It is an arithmetic number, because the mean of its divisors is an integer number (25991235504).

Almost surely, 2^166055115605 is an apocalyptic number.

It is an amenable number.

166055115605 is a deficient number, since it is larger than the sum of its proper divisors (41874768427).

166055115605 is a wasteful number, since it uses less digits than its factorization.

166055115605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443957555.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 166055115605 in words is "one hundred sixty-six billion, fifty-five million, one hundred fifteen thousand, six hundred five".