166488466 has 4 divisors (see below), whose sum is σ = 249732702. Its totient is φ = 83244232.

The previous prime is 166488461. The next prime is 166488481. The reversal of 166488466 is 664884661.

166488466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 143496441 + 22992025 = 11979^2 + 4795^2 .

It is a super-2 number, since 2×166488466² = 55436818622066312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166488461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41622115 + ... + 41622118.

Almost surely, 2^166488466 is an apocalyptic number.

166488466 is a deficient number, since it is larger than the sum of its proper divisors (83244236).

166488466 is an equidigital number, since it uses as much as digits as its factorization.

166488466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83244235.

The product of its digits is 1327104, while the sum is 49.

The square root of 166488466 is about 12903.0409594018. The cubic root of 166488466 is about 550.1250029924.

The spelling of 166488466 in words is "one hundred sixty-six million, four hundred eighty-eight thousand, four hundred sixty-six".