166477228 has 12 divisors (see below), whose sum is σ = 291433912. Its totient is φ = 83210400.

The previous prime is 166477219. The next prime is 166477229. The reversal of 166477228 is 822774661.

Its product of digits (225792) is a multiple of the sum of its prime factors (14112).

It is not an unprimeable number, because it can be changed into a prime (166477229) 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, 11851 + ... + 21757.

Almost surely, 2^166477228 is an apocalyptic number.

It is an amenable number.

166477228 is a deficient number, since it is larger than the sum of its proper divisors (124956684).

166477228 is a wasteful number, since it uses less digits than its factorization.

166477228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14112 (or 14110 counting only the distinct ones).

The product of its digits is 225792, while the sum is 43.

The square root of 166477228 is about 12902.6054733143. The cubic root of 166477228 is about 550.1126248698.

The spelling of 166477228 in words is "one hundred sixty-six million, four hundred seventy-seven thousand, two hundred twenty-eight".