166504340 has 12 divisors (see below), whose sum is σ = 349659156. Its totient is φ = 66601728.

The previous prime is 166504279. The next prime is 166504343. The reversal of 166504340 is 43405661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73034116 + 93470224 = 8546^2 + 9668^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166504343) 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, 4162589 + ... + 4162628.

It is an arithmetic number, because the mean of its divisors is an integer number (29138263).

Almost surely, 2^166504340 is an apocalyptic number.

166504340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166504340 is an abundant number, since it is smaller than the sum of its proper divisors (183154816).

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

166504340 is a wasteful number, since it uses less digits than its factorization.

166504340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325226 (or 8325224 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 166504340 is about 12903.6560710521. The cubic root of 166504340 is about 550.1424864993.

The spelling of 166504340 in words is "one hundred sixty-six million, five hundred four thousand, three hundred forty".