5310857666 has 4 divisors (see below), whose sum is σ = 7966286502. Its totient is φ = 2655428832.

The previous prime is 5310857663. The next prime is 5310857677. The reversal of 5310857666 is 6667580135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6667580135 = 5 ⋅1333516027.

It can be written as a sum of positive squares in only one way, i.e., 3883907041 + 1426950625 = 62321^2 + 37775^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5310857666.

It is not an unprimeable number, because it can be changed into a prime (5310857663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327714415 + ... + 1327714418.

Almost surely, 2^5310857666 is an apocalyptic number.

5310857666 is a deficient number, since it is larger than the sum of its proper divisors (2655428836).

5310857666 is a wasteful number, since it uses less digits than its factorization.

5310857666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655428835.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 5310857666 is about 72875.6314964063. The cubic root of 5310857666 is about 1744.7031857789.

The spelling of 5310857666 in words is "five billion, three hundred ten million, eight hundred fifty-seven thousand, six hundred sixty-six".