5166664 has 8 divisors (see below), whose sum is σ = 9687510. Its totient is φ = 2583328.

The previous prime is 5166661. The next prime is 5166671. The reversal of 5166664 is 4666615.

It can be written as a sum of positive squares in only one way, i.e., 2788900 + 2377764 = 1670^2 + 1542^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5166661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322909 + ... + 322924.

Almost surely, 2^5166664 is an apocalyptic number.

It is an amenable number.

5166664 is a deficient number, since it is larger than the sum of its proper divisors (4520846).

5166664 is a wasteful number, since it uses less digits than its factorization.

5166664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645839 (or 645835 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 5166664 is about 2273.0296962424. The cubic root of 5166664 is about 172.8768098458.

The spelling of 5166664 in words is "five million, one hundred sixty-six thousand, six hundred sixty-four".