5143115666 has 8 divisors (see below), whose sum is σ = 8308109964. Its totient is φ = 2373745680.

The previous prime is 5143115651. The next prime is 5143115687. The reversal of 5143115666 is 6665113415.

It can be written as a sum of positive squares in 2 ways, for example, as 4970955025 + 172160641 = 70505^2 + 13121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 98906045 + ... + 98906096.

Almost surely, 2^5143115666 is an apocalyptic number.

5143115666 is a deficient number, since it is larger than the sum of its proper divisors (3164994298).

5143115666 is a wasteful number, since it uses less digits than its factorization.

5143115666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197812156.

The product of its digits is 64800, while the sum is 38.

The square root of 5143115666 is about 71715.5190039088. The cubic root of 5143115666 is about 1726.1376704117.

The spelling of 5143115666 in words is "five billion, one hundred forty-three million, one hundred fifteen thousand, six hundred sixty-six".