5324715661 has 4 divisors (see below), whose sum is σ = 5324994432. Its totient is φ = 5324436892.

The previous prime is 5324715653. The next prime is 5324715677. The reversal of 5324715661 is 1665174235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1665174235 = 5 ⋅333034847.

It is a cyclic number.

It is not a de Polignac number, because 5324715661 - 2³ = 5324715653 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5324715611) by changing a digit.

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, 108445 + ... + 149698.

It is an arithmetic number, because the mean of its divisors is an integer number (1331248608).

Almost surely, 2^5324715661 is an apocalyptic number.

It is an amenable number.

5324715661 is a deficient number, since it is larger than the sum of its proper divisors (278771).

5324715661 is a wasteful number, since it uses less digits than its factorization.

5324715661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278770.

The product of its digits is 151200, while the sum is 40.

The square root of 5324715661 is about 72970.6493118980. The cubic root of 5324715661 is about 1746.2193933995.

Adding to 5324715661 its reverse (1665174235), we get a palindrome (6989889896).

The spelling of 5324715661 in words is "five billion, three hundred twenty-four million, seven hundred fifteen thousand, six hundred sixty-one".