166500180022 has 32 divisors (see below), whose sum is σ = 283537739520. Its totient is φ = 72634574880.

The previous prime is 166500180001. The next prime is 166500180031. The reversal of 166500180022 is 220081005661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 674808 + ... + 887899.

It is an arithmetic number, because the mean of its divisors is an integer number (8860554360).

Almost surely, 2^166500180022 is an apocalyptic number.

166500180022 is a deficient number, since it is larger than the sum of its proper divisors (117037559498).

166500180022 is a wasteful number, since it uses less digits than its factorization.

166500180022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562916.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 166500180022 its reverse (220081005661), we get a palindrome (386581185683).

The spelling of 166500180022 in words is "one hundred sixty-six billion, five hundred million, one hundred eighty thousand, twenty-two".