166687410 has 64 divisors (see below), whose sum is σ = 409328640. Its totient is φ = 43431360.

The previous prime is 166687379. The next prime is 166687421. The reversal of 166687410 is 14786661.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295789 + ... + 296351.

It is an arithmetic number, because the mean of its divisors is an integer number (6395760).

Almost surely, 2^166687410 is an apocalyptic number.

166687410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166687410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204664320).

166687410 is an abundant number, since it is smaller than the sum of its proper divisors (242641230).

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

166687410 is a wasteful number, since it uses less digits than its factorization.

166687410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 166687410 is about 12910.7478482077. The cubic root of 166687410 is about 550.3440381945.

The spelling of 166687410 in words is "one hundred sixty-six million, six hundred eighty-seven thousand, four hundred ten".