5145664466 has 12 divisors (see below), whose sum is σ = 8068675902. Its totient is φ = 2460969456.

The previous prime is 5145664423. The next prime is 5145664471. The reversal of 5145664466 is 6644665415.

It can be written as a sum of positive squares in only one way, i.e., 4969545025 + 176119441 = 70495^2 + 13271^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5145664466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2430731 + ... + 2432846.

Almost surely, 2^5145664466 is an apocalyptic number.

5145664466 is a deficient number, since it is larger than the sum of its proper divisors (2923011436).

5145664466 is a wasteful number, since it uses less digits than its factorization.

5145664466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863625 (or 4863602 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 47.

The square root of 5145664466 is about 71733.2870151647. The cubic root of 5145664466 is about 1726.4227669307.

The spelling of 5145664466 in words is "five billion, one hundred forty-five million, six hundred sixty-four thousand, four hundred sixty-six".