166463172 has 36 divisors (see below), whose sum is σ = 422061276. Its totient is φ = 55319040.

The previous prime is 166463153. The next prime is 166463179. The reversal of 166463172 is 271364661.

It is a happy number.

166463172 is a `hidden beast` number, since 1 + 6 + 646 + 3 + 1 + 7 + 2 = 666.

166463172 is digitally balanced in base 3, because in such base 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 39765636 + 126697536 = 6306^2 + 11256^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (166463179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5272 + ... + 18992.

Almost surely, 2^166463172 is an apocalyptic number.

166463172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166463172 is an abundant number, since it is smaller than the sum of its proper divisors (255598104).

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

166463172 is a wasteful number, since it uses less digits than its factorization.

166463172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14068 (or 14063 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 166463172 is about 12902.0607656297. The cubic root of 166463172 is about 550.0971420702.

The spelling of 166463172 in words is "one hundred sixty-six million, four hundred sixty-three thousand, one hundred seventy-two".