166464545464660 has 48 divisors (see below), whose sum is σ = 349792294384512. Its totient is φ = 66544536009600.

The previous prime is 166464545464517. The next prime is 166464545464673. The reversal of 166464545464660 is 66464545464661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926406625 + ... + 926586295.

It is an arithmetic number, because the mean of its divisors is an integer number (7287339466344).

Almost surely, 2^{166464545464660} is an apocalyptic number.

166464545464660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166464545464660 is an abundant number, since it is smaller than the sum of its proper divisors (183327748919852).

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

166464545464660 is a wasteful number, since it uses less digits than its factorization.

166464545464660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208144 (or 208142 counting only the distinct ones).

The product of its (nonzero) digits is 1194393600, while the sum is 67.

Subtracting from 166464545464660 its reverse (66464545464661), we obtain a palindrome (99999999999999).

The spelling of 166464545464660 in words is "one hundred sixty-six trillion, four hundred sixty-four billion, five hundred forty-five million, four hundred sixty-four thousand, six hundred sixty".