5365243666 has 4 divisors (see below), whose sum is σ = 8047865502. Its totient is φ = 2682621832.

The previous prime is 5365243661. The next prime is 5365243699. The reversal of 5365243666 is 6663425635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6663425635 = 5 ⋅1332685127.

It can be written as a sum of positive squares in only one way, i.e., 5309308225 + 55935441 = 72865^2 + 7479^2 .

It is not an unprimeable number, because it can be changed into a prime (5365243661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1341310915 + ... + 1341310918.

Almost surely, 2^5365243666 is an apocalyptic number.

5365243666 is a deficient number, since it is larger than the sum of its proper divisors (2682621836).

5365243666 is a wasteful number, since it uses less digits than its factorization.

5365243666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682621835.

The product of its digits is 2332800, while the sum is 46.

The square root of 5365243666 is about 73247.8236263713. The cubic root of 5365243666 is about 1750.6385333534.

The spelling of 5365243666 in words is "five billion, three hundred sixty-five million, two hundred forty-three thousand, six hundred sixty-six".