166404472 has 32 divisors (see below), whose sum is σ = 336782880. Its totient is φ = 76625280.

The previous prime is 166404463. The next prime is 166404481. The reversal of 166404472 is 274404661.

166404472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166404463) and next prime (166404481).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50722 + ... + 53902.

It is an arithmetic number, because the mean of its divisors is an integer number (10524465).

Almost surely, 2^166404472 is an apocalyptic number.

It is an amenable number.

166404472 is an abundant number, since it is smaller than the sum of its proper divisors (170378408).

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

166404472 is a wasteful number, since it uses less digits than its factorization.

166404472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703 (or 3699 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 166404472 is about 12899.7857346547. The cubic root of 166404472 is about 550.0324741156.

It can be divided in two parts, 16640 and 4472, that added together give a palindrome (21112).

The spelling of 166404472 in words is "one hundred sixty-six million, four hundred four thousand, four hundred seventy-two".