166554180222 has 16 divisors (see below), whose sum is σ = 333112363920. Its totient is φ = 55517392832.

The previous prime is 166554180181. The next prime is 166554180227. The reversal of 166554180222 is 222081455661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166554180227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864304 + ... + 1039292.

It is an arithmetic number, because the mean of its divisors is an integer number (20819522745).

Almost surely, 2^166554180222 is an apocalyptic number.

166554180222 is an abundant number, since it is smaller than the sum of its proper divisors (166558183698).

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

166554180222 is a wasteful number, since it uses less digits than its factorization.

166554180222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333627.

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 166554180222 in words is "one hundred sixty-six billion, five hundred fifty-four million, one hundred eighty thousand, two hundred twenty-two".