166724004 has 12 divisors (see below), whose sum is σ = 389022704. Its totient is φ = 55574664.

The previous prime is 166724003. The next prime is 166724023. The reversal of 166724004 is 400427661.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (166724003) 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, 6946822 + ... + 6946845.

Almost surely, 2^166724004 is an apocalyptic number.

It is an amenable number.

166724004 is an abundant number, since it is smaller than the sum of its proper divisors (222298700).

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

166724004 is a wasteful number, since it uses less digits than its factorization.

166724004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13893674 (or 13893672 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 166724004 is about 12912.1649617715. The cubic root of 166724004 is about 550.3843088147.

The spelling of 166724004 in words is "one hundred sixty-six million, seven hundred twenty-four thousand, four".