66065117167168 has 28 divisors (see below), whose sum is σ = 149826247862272. Its totient is φ = 28313621642880.

The previous prime is 66065117167163. The next prime is 66065117167237. The reversal of 66065117167168 is 86176171156066.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (66065117167163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73733389248 + ... + 73733390143.

Almost surely, 2^{66065117167168} is an apocalyptic number.

It is an amenable number.

66065117167168 is an abundant number, since it is smaller than the sum of its proper divisors (83761130695104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66065117167168 is a wasteful number, since it uses less digits than its factorization.

66065117167168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147466779410 (or 147466779400 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 66065117167168 in words is "sixty-six trillion, sixty-five billion, one hundred seventeen million, one hundred sixty-seven thousand, one hundred sixty-eight".