166067240 has 16 divisors (see below), whose sum is σ = 373651380. Its totient is φ = 66426880.

The previous prime is 166067227. The next prime is 166067249. The reversal of 166067240 is 42760661.

It can be written as a sum of positive squares in 2 ways, for example, as 162154756 + 3912484 = 12734^2 + 1978^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166067197 and 166067206.

It is not an unprimeable number, because it can be changed into a prime (166067249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2075801 + ... + 2075880.

Almost surely, 2^166067240 is an apocalyptic number.

166067240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166067240 is an abundant number, since it is smaller than the sum of its proper divisors (207584140).

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

166067240 is a wasteful number, since it uses less digits than its factorization.

166067240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151692 (or 4151688 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 166067240 is about 12886.7078806032. The cubic root of 166067240 is about 549.6606612013.

The spelling of 166067240 in words is "one hundred sixty-six million, sixty-seven thousand, two hundred forty".