166666130 has 32 divisors (see below), whose sum is σ = 326243376. Its totient is φ = 61046784.

The previous prime is 166666127. The next prime is 166666133. The reversal of 166666130 is 31666661.

It is an interprime number because it is at equal distance from previous prime (166666127) and next prime (166666133).

It can be written as a sum of positive squares in 8 ways, for example, as 157527601 + 9138529 = 12551^2 + 3023^2 .

It is not an unprimeable number, because it can be changed into a prime (166666133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6959 + ... + 19538.

Almost surely, 2^166666130 is an apocalyptic number.

166666130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166666130 is a deficient number, since it is larger than the sum of its proper divisors (159577246).

166666130 is a wasteful number, since it uses less digits than its factorization.

166666130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26558.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 166666130 is about 12909.9237023307. The cubic root of 166666130 is about 550.3206174704.

The spelling of 166666130 in words is "one hundred sixty-six million, six hundred sixty-six thousand, one hundred thirty".