166666666070 has 8 divisors (see below), whose sum is σ = 299999998944. Its totient is φ = 66666666424.

The previous prime is 166666666037. The next prime is 166666666087. The reversal of 166666666070 is 70666666661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166666665997 and 166666666015.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 8333333294 + ... + 8333333313.

It is an arithmetic number, because the mean of its divisors is an integer number (37499999868).

Almost surely, 2^166666666070 is an apocalyptic number.

166666666070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166666666070 is a deficient number, since it is larger than the sum of its proper divisors (133333332874).

166666666070 is a wasteful number, since it uses less digits than its factorization.

166666666070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16666666614.

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 166666666070 in words is "one hundred sixty-six billion, six hundred sixty-six million, six hundred sixty-six thousand, seventy".