166488452 has 24 divisors (see below), whose sum is σ = 315780696. Its totient is φ = 76347648.

The previous prime is 166488451. The next prime is 166488457. The reversal of 166488452 is 254884661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2033476 + 164454976 = 1426^2 + 12824^2 .

It is not an unprimeable number, because it can be changed into a prime (166488451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2033 + ... + 18360.

It is an arithmetic number, because the mean of its divisors is an integer number (13157529).

Almost surely, 2^166488452 is an apocalyptic number.

It is an amenable number.

166488452 is a deficient number, since it is larger than the sum of its proper divisors (149292244).

166488452 is a wasteful number, since it uses less digits than its factorization.

166488452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20567 (or 20565 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 166488452 is about 12903.0404168940. The cubic root of 166488452 is about 550.1249875724.

The spelling of 166488452 in words is "one hundred sixty-six million, four hundred eighty-eight thousand, four hundred fifty-two".