166213022 has 8 divisors (see below), whose sum is σ = 249489072. Its totient is φ = 83050000.

The previous prime is 166212967. The next prime is 166213027. The reversal of 166213022 is 220312661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166213027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24479 + ... + 30522.

It is an arithmetic number, because the mean of its divisors is an integer number (31186134).

Almost surely, 2^166213022 is an apocalyptic number.

166213022 is a deficient number, since it is larger than the sum of its proper divisors (83276050).

166213022 is a wasteful number, since it uses less digits than its factorization.

166213022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56514.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 166213022 is about 12892.3629331477. The cubic root of 166213022 is about 549.8214538907.

Adding to 166213022 its reverse (220312661), we get a palindrome (386525683).

The spelling of 166213022 in words is "one hundred sixty-six million, two hundred thirteen thousand, twenty-two".