5658664856784 has 40 divisors (see below), whose sum is σ = 14620841280672. Its totient is φ = 1885883072640.

The previous prime is 5658664856783. The next prime is 5658664856849. The reversal of 5658664856784 is 4876584668565.

It is a super-2 number, since 2×5658664856784² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5658664856783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10309282 + ... + 10844289.

Almost surely, 2^{5658664856784} is an apocalyptic number.

It is an amenable number.

5658664856784 is an abundant number, since it is smaller than the sum of its proper divisors (8962176423888).

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

5658664856784 is a wasteful number, since it uses less digits than its factorization.

5658664856784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21159155 (or 21159149 counting only the distinct ones).

The product of its digits is 9289728000, while the sum is 78.

The spelling of 5658664856784 in words is "five trillion, six hundred fifty-eight billion, six hundred sixty-four million, eight hundred fifty-six thousand, seven hundred eighty-four".