166115065015166 has 16 divisors (see below), whose sum is σ = 250121255195760. Its totient is φ = 82741900507200.

The previous prime is 166115065015121. The next prime is 166115065015171. The reversal of 166115065015166 is 661510560511661.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146239685 + ... + 147371216.

It is an arithmetic number, because the mean of its divisors is an integer number (15632578449735).

Almost surely, 2^{166115065015166} is an apocalyptic number.

166115065015166 is a deficient number, since it is larger than the sum of its proper divisors (84006190180594).

166115065015166 is a wasteful number, since it uses less digits than its factorization.

166115065015166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293611979.

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 166115065015166 in words is "one hundred sixty-six trillion, one hundred fifteen billion, sixty-five million, fifteen thousand, one hundred sixty-six".