166367228 has 6 divisors (see below), whose sum is σ = 291142656. Its totient is φ = 83183612.

The previous prime is 166367221. The next prime is 166367261. The reversal of 166367228 is 822763661.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166367221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20795900 + ... + 20795907.

It is an arithmetic number, because the mean of its divisors is an integer number (48523776).

Almost surely, 2^166367228 is an apocalyptic number.

It is an amenable number.

166367228 is a deficient number, since it is larger than the sum of its proper divisors (124775428).

166367228 is a wasteful number, since it uses less digits than its factorization.

166367228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41591811 (or 41591809 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 166367228 is about 12898.3420640019. The cubic root of 166367228 is about 549.9914356793.

The spelling of 166367228 in words is "one hundred sixty-six million, three hundred sixty-seven thousand, two hundred twenty-eight".