5246315665 has 4 divisors (see below), whose sum is σ = 6295578804. Its totient is φ = 4197052528.

The previous prime is 5246315629. The next prime is 5246315681. The reversal of 5246315665 is 5665136425.

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 1407150144 + 3839165521 = 37512^2 + 61961^2 .

It is a cyclic number.

It is not a de Polignac number, because 5246315665 - 2⁷ = 5246315537 is a prime.

It is a super-4 number, since 4×5246315665⁴ (a number of 40 digits) contains 4444 as substring.

It is a Duffinian 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, 524631562 + ... + 524631571.

It is an arithmetic number, because the mean of its divisors is an integer number (1573894701).

Almost surely, 2^5246315665 is an apocalyptic number.

It is an amenable number.

5246315665 is a deficient number, since it is larger than the sum of its proper divisors (1049263139).

5246315665 is a wasteful number, since it uses less digits than its factorization.

5246315665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049263138.

The product of its digits is 648000, while the sum is 43.

The square root of 5246315665 is about 72431.4549418966. The cubic root of 5246315665 is about 1737.6066607400.

The spelling of 5246315665 in words is "five billion, two hundred forty-six million, three hundred fifteen thousand, six hundred sixty-five".