166570222 has 16 divisors (see below), whose sum is σ = 307514592. Its totient is φ = 65895840.

The previous prime is 166570213. The next prime is 166570231. The reversal of 166570222 is 222075661.

It is an interprime number because it is at equal distance from previous prime (166570213) and next prime (166570231).

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 7 ways as a sum of consecutive naturals, for example, 457429 + ... + 457792.

It is an arithmetic number, because the mean of its divisors is an integer number (19219662).

Almost surely, 2^166570222 is an apocalyptic number.

166570222 is a deficient number, since it is larger than the sum of its proper divisors (140944370).

166570222 is a wasteful number, since it uses less digits than its factorization.

166570222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915243.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 166570222 is about 12906.2086609507. The cubic root of 166570222 is about 550.2150365761.

The spelling of 166570222 in words is "one hundred sixty-six million, five hundred seventy thousand, two hundred twenty-two".