166497144 has 64 divisors (see below), whose sum is σ = 460909440. Its totient is φ = 49695360.

The previous prime is 166497139. The next prime is 166497181. The reversal of 166497144 is 441794661.

It is a junction number, because it is equal to n+sod(n) for n = 166497096 and 166497105.

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, 12982 + ... + 22394.

It is an arithmetic number, because the mean of its divisors is an integer number (7201710).

Almost surely, 2^166497144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166497144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230454720).

166497144 is an abundant number, since it is smaller than the sum of its proper divisors (294412296).

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

166497144 is a wasteful number, since it uses less digits than its factorization.

166497144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9500 (or 9496 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 166497144 is about 12903.3772323373. The cubic root of 166497144 is about 550.1345610155.

The spelling of 166497144 in words is "one hundred sixty-six million, four hundred ninety-seven thousand, one hundred forty-four".