166747449924 has 72 divisors (see below), whose sum is σ = 461528383680. Its totient is φ = 50341656000.

The previous prime is 166747449923. The next prime is 166747449929. The reversal of 166747449924 is 429944747661.

166747449924 is a `hidden beast` number, since 1 + 6 + 6 + 74 + 74 + 499 + 2 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (166747449923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 676152 + ... + 889199.

It is an arithmetic number, because the mean of its divisors is an integer number (6410116440).

Almost surely, 2^166747449924 is an apocalyptic number.

It is an amenable number.

166747449924 is an abundant number, since it is smaller than the sum of its proper divisors (294780933756).

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

166747449924 is a wasteful number, since it uses less digits than its factorization.

166747449924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565641 (or 1565636 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The spelling of 166747449924 in words is "one hundred sixty-six billion, seven hundred forty-seven million, four hundred forty-nine thousand, nine hundred twenty-four".