166643124 has 24 divisors (see below), whose sum is σ = 392404320. Its totient is φ = 55037664.

The previous prime is 166643123. The next prime is 166643131. The reversal of 166643124 is 421346661.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166643123) 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, 62394 + ... + 65009.

It is an arithmetic number, because the mean of its divisors is an integer number (16350180).

Almost surely, 2^166643124 is an apocalyptic number.

It is an amenable number.

166643124 is an abundant number, since it is smaller than the sum of its proper divisors (225761196).

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

166643124 is a wasteful number, since it uses less digits than its factorization.

166643124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127519 (or 127517 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 166643124 is about 12909.0326515971. The cubic root of 166643124 is about 550.2952948714.

Adding to 166643124 its reverse (421346661), we get a palindrome (587989785).

The spelling of 166643124 in words is "one hundred sixty-six million, six hundred forty-three thousand, one hundred twenty-four".