6566016403 has 4 divisors (see below), whose sum is σ = 6952252680. Its totient is φ = 6179780128.

The previous prime is 6566016383. The next prime is 6566016407. The reversal of 6566016403 is 3046106656.

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

It is a cyclic number.

It is not a de Polignac number, because 6566016403 - 2²⁹ = 6029145491 is a prime.

It is a super-2 number, since 2×6566016403² = 86225142808930116818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6566016407) 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 3 ways as a sum of consecutive naturals, for example, 193118113 + ... + 193118146.

It is an arithmetic number, because the mean of its divisors is an integer number (1738063170).

Almost surely, 2^6566016403 is an apocalyptic number.

6566016403 is a deficient number, since it is larger than the sum of its proper divisors (386236277).

6566016403 is a wasteful number, since it uses less digits than its factorization.

6566016403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386236276.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 6566016403 is about 81030.9595339954. The cubic root of 6566016403 is about 1872.5524357406.

The spelling of 6566016403 in words is "six billion, five hundred sixty-six million, sixteen thousand, four hundred three".