166659464 has 8 divisors (see below), whose sum is σ = 312486510. Its totient is φ = 83329728.

The previous prime is 166659461. The next prime is 166659473. The reversal of 166659464 is 464956661.

It can be written as a sum of positive squares in only one way, i.e., 138250564 + 28408900 = 11758^2 + 5330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (166659461) 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 as a sum of consecutive naturals, namely, 10416209 + ... + 10416224.

Almost surely, 2^166659464 is an apocalyptic number.

It is an amenable number.

166659464 is a deficient number, since it is larger than the sum of its proper divisors (145827046).

166659464 is a wasteful number, since it uses less digits than its factorization.

166659464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20832439 (or 20832435 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 166659464 is about 12909.6655262636. The cubic root of 166659464 is about 550.3132804745.

The spelling of 166659464 in words is "one hundred sixty-six million, six hundred fifty-nine thousand, four hundred sixty-four".