70221166 has 8 divisors (see below), whose sum is σ = 105374880. Its totient is φ = 35096208.

The previous prime is 70221161. The next prime is 70221181. The reversal of 70221166 is 66112207.

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

It is a self number, because there is not a number n which added to its sum of digits gives 70221166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70221161) 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 3 ways as a sum of consecutive naturals, for example, 610 + ... + 11866.

It is an arithmetic number, because the mean of its divisors is an integer number (13171860).

Almost surely, 2^70221166 is an apocalyptic number.

70221166 is a deficient number, since it is larger than the sum of its proper divisors (35153714).

70221166 is a wasteful number, since it uses less digits than its factorization.

70221166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14378.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 70221166 is about 8379.8070383512. The cubic root of 70221166 is about 412.5621156536.

The spelling of 70221166 in words is "seventy million, two hundred twenty-one thousand, one hundred sixty-six".