166550622 has 32 divisors (see below), whose sum is σ = 385281792. Its totient is φ = 47011584.

The previous prime is 166550621. The next prime is 166550623. The reversal of 166550622 is 226055661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (166550621) and next prime (166550623).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166550621) 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, 20403 + ... + 27374.

It is an arithmetic number, because the mean of its divisors is an integer number (12040056).

Almost surely, 2^166550622 is an apocalyptic number.

166550622 is an abundant number, since it is smaller than the sum of its proper divisors (218731170).

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

166550622 is a wasteful number, since it uses less digits than its factorization.

166550622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47872.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 166550622 is about 12905.4493141463. The cubic root of 166550622 is about 550.1934548120.

The spelling of 166550622 in words is "one hundred sixty-six million, five hundred fifty thousand, six hundred twenty-two".