166724332004 has 12 divisors (see below), whose sum is σ = 291802804524. Its totient is φ = 83352102144.

The previous prime is 166724331973. The next prime is 166724332037. The reversal of 166724332004 is 400233427661.

166724332004 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 can be written as a sum of positive squares in 2 ways, for example, as 116794429504 + 49929902500 = 341752^2 + 223450^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2478629 + ... + 2545004.

It is an arithmetic number, because the mean of its divisors is an integer number (24316900377).

Almost surely, 2^166724332004 is an apocalyptic number.

It is an amenable number.

166724332004 is a deficient number, since it is larger than the sum of its proper divisors (125078472520).

166724332004 is a wasteful number, since it uses less digits than its factorization.

166724332004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031934 (or 5031932 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

Adding to 166724332004 its reverse (400233427661), we get a palindrome (566957759665).

The spelling of 166724332004 in words is "one hundred sixty-six billion, seven hundred twenty-four million, three hundred thirty-two thousand, four".