5665342464 has 66 divisors (see below), whose sum is σ = 16358580030. Its totient is φ = 1888444416.

The previous prime is 5665342387. The next prime is 5665342559. The reversal of 5665342464 is 4642435665.

It is a happy number.

5665342464 is a `hidden beast` number, since 56 + 6 + 534 + 2 + 4 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5156388864 + 508953600 = 71808^2 + 22560^2 .

It is a super-2 number, since 2×5665342464² = 64192210468803182592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 298149 + ... + 316580.

Almost surely, 2^5665342464 is an apocalyptic number.

It is an amenable number.

5665342464 is an abundant number, since it is smaller than the sum of its proper divisors (10693237566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5665342464 is a wasteful number, since it uses less digits than its factorization.

5665342464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614755 (or 614734 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The square root of 5665342464 is about 75268.4692550606. The cubic root of 5665342464 is about 1782.6881975724.

The spelling of 5665342464 in words is "five billion, six hundred sixty-five million, three hundred forty-two thousand, four hundred sixty-four".