66166176 has 48 divisors (see below), whose sum is σ = 183907584. Its totient is φ = 20757504.

The previous prime is 66166171. The next prime is 66166201. The reversal of 66166176 is 67166166.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (66166171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18640 + ... + 21903.

It is an arithmetic number, because the mean of its divisors is an integer number (3831408).

Almost surely, 2^66166176 is an apocalyptic number.

It is an amenable number.

66166176 is an abundant number, since it is smaller than the sum of its proper divisors (117741408).

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

66166176 is a wasteful number, since it uses less digits than its factorization.

66166176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40573 (or 40565 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 66166176 is about 8134.2594008305. The cubic root of 66166176 is about 404.4628880567.

The spelling of 66166176 in words is "sixty-six million, one hundred sixty-six thousand, one hundred seventy-six".