166841040 has 40 divisors (see below), whose sum is σ = 517207968. Its totient is φ = 44490880.

The previous prime is 166841021. The next prime is 166841047. The reversal of 166841040 is 40148661.

166841040 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 Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 166840989 and 166841007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166841047) 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, 347346 + ... + 347825.

Almost surely, 2^166841040 is an apocalyptic number.

166841040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166841040 is an abundant number, since it is smaller than the sum of its proper divisors (350366928).

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

166841040 is a wasteful number, since it uses less digits than its factorization.

166841040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695187 (or 695181 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 166841040 is about 12916.6961720093. The cubic root of 166841040 is about 550.5130639425.

The spelling of 166841040 in words is "one hundred sixty-six million, eight hundred forty-one thousand, forty".