5623913665 has 8 divisors (see below), whose sum is σ = 6751152000. Its totient is φ = 4497493872.

The previous prime is 5623913641. The next prime is 5623913681. The reversal of 5623913665 is 5663193265.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5623913665 - 2¹¹ = 5623911617 is a prime.

It is a super-2 number, since 2×5623913665² = 63256809822747464450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189415 + ... + 217084.

It is an arithmetic number, because the mean of its divisors is an integer number (843894000).

Almost surely, 2^5623913665 is an apocalyptic number.

It is an amenable number.

5623913665 is a deficient number, since it is larger than the sum of its proper divisors (1127238335).

5623913665 is a wasteful number, since it uses less digits than its factorization.

5623913665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409271.

The product of its digits is 874800, while the sum is 46.

The square root of 5623913665 is about 74992.7574169666. The cubic root of 5623913665 is about 1778.3321566462.

The spelling of 5623913665 in words is "five billion, six hundred twenty-three million, nine hundred thirteen thousand, six hundred sixty-five".