166471643760 has 40 divisors (see below), whose sum is σ = 516062096400. Its totient is φ = 44392438272.

The previous prime is 166471643747. The next prime is 166471643777. The reversal of 166471643760 is 67346174661.

166471643760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346815685 + ... + 346816164.

It is an arithmetic number, because the mean of its divisors is an integer number (12901552410).

Almost surely, 2^166471643760 is an apocalyptic number.

166471643760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166471643760 is an abundant number, since it is smaller than the sum of its proper divisors (349590452640).

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

166471643760 is a wasteful number, since it uses less digits than its factorization.

166471643760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693631865 (or 693631859 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 51.

It can be divided in two parts, 1664716 and 43760, that added together give a triangular number (1708476 = T₁₈₄₈).

The spelling of 166471643760 in words is "one hundred sixty-six billion, four hundred seventy-one million, six hundred forty-three thousand, seven hundred sixty".