166006065165 has 16 divisors (see below), whose sum is σ = 267368712576. Its totient is φ = 87950232000.

The previous prime is 166006065119. The next prime is 166006065167. The reversal of 166006065165 is 561560600661.

It is not a de Polignac number, because 166006065165 - 2¹⁰ = 166006064141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166006065167) 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, 36643666 + ... + 36648195.

It is an arithmetic number, because the mean of its divisors is an integer number (16710544536).

Almost surely, 2^166006065165 is an apocalyptic number.

166006065165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166006065165 is a deficient number, since it is larger than the sum of its proper divisors (101362647411).

166006065165 is a wasteful number, since it uses less digits than its factorization.

166006065165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73292020.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 166006065165 in words is "one hundred sixty-six billion, six million, sixty-five thousand, one hundred sixty-five".