166739424 has 48 divisors (see below), whose sum is σ = 438504192. Its totient is φ = 55476608.

The previous prime is 166739401. The next prime is 166739429. The reversal of 166739424 is 424937661.

166739424 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 tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166739429) 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, 64297 + ... + 66839.

It is an arithmetic number, because the mean of its divisors is an integer number (9135504).

Almost surely, 2^166739424 is an apocalyptic number.

It is an amenable number.

166739424 is an abundant number, since it is smaller than the sum of its proper divisors (271764768).

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

166739424 is a wasteful number, since it uses less digits than its factorization.

166739424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239 (or 3231 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 166739424 is about 12912.7620592962. The cubic root of 166739424 is about 550.4012763063.

The spelling of 166739424 in words is "one hundred sixty-six million, seven hundred thirty-nine thousand, four hundred twenty-four".