5423664663245 has 4 divisors (see below), whose sum is σ = 6508397595900. Its totient is φ = 4338931730592.

The previous prime is 5423664663239. The next prime is 5423664663301.

5423664663245 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2274296237929 + 3149368425316 = 1508077^2 + 1774646^2 .

It is a cyclic number.

It is not a de Polignac number, because 5423664663245 - 2¹⁶ = 5423664597709 is a prime.

It is a super-2 number, since 2×5423664663245² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542366466320 + ... + 542366466329.

It is an arithmetic number, because the mean of its divisors is an integer number (1627099398975).

Almost surely, 2^{5423664663245} is an apocalyptic number.

It is an amenable number.

5423664663245 is a deficient number, since it is larger than the sum of its proper divisors (1084732932655).

5423664663245 is a wasteful number, since it uses less digits than its factorization.

5423664663245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084732932654.

The product of its digits is 74649600, while the sum is 56.

The spelling of 5423664663245 in words is "five trillion, four hundred twenty-three billion, six hundred sixty-four million, six hundred sixty-three thousand, two hundred forty-five".