166666116615045 has 16 divisors (see below), whose sum is σ = 266688981240000. Its totient is φ = 88880863976064.

The previous prime is 166666116615041. The next prime is 166666116615079. The reversal of 166666116615045 is 540516611666661.

It is not a de Polignac number, because 166666116615045 - 2² = 166666116615041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166666116615045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166666116615041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483043795 + ... + 483388704.

It is an arithmetic number, because the mean of its divisors is an integer number (16668061327500).

Almost surely, 2^{166666116615045} is an apocalyptic number.

166666116615045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166666116615045 is a deficient number, since it is larger than the sum of its proper divisors (100022864624955).

166666116615045 is a wasteful number, since it uses less digits than its factorization.

166666116615045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966444004.

The product of its (nonzero) digits is 27993600, while the sum is 60.

The spelling of 166666116615045 in words is "one hundred sixty-six trillion, six hundred sixty-six billion, one hundred sixteen million, six hundred fifteen thousand, forty-five".