166493208 has 32 divisors (see below), whose sum is σ = 475695360. Its totient is φ = 47569440.

The previous prime is 166493207. The next prime is 166493231. The reversal of 166493208 is 802394661.

166493208 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×166493208³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166493203) 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, 495348 + ... + 495683.

It is an arithmetic number, because the mean of its divisors is an integer number (14865480).

Almost surely, 2^166493208 is an apocalyptic number.

It is an amenable number.

166493208 is an abundant number, since it is smaller than the sum of its proper divisors (309202152).

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

166493208 is a wasteful number, since it uses less digits than its factorization.

166493208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991047 (or 991043 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 166493208 is about 12903.2247132258. The cubic root of 166493208 is about 550.1302259127.

The spelling of 166493208 in words is "one hundred sixty-six million, four hundred ninety-three thousand, two hundred eight".