6643351062051 has 16 divisors (see below), whose sum is σ = 9663170039040. Its totient is φ = 4026225892320.

The previous prime is 6643351062041. The next prime is 6643351062083. The reversal of 6643351062051 is 1502601533466.

It is not a de Polignac number, because 6643351062051 - 2⁹ = 6643351061539 is a prime.

It is a super-2 number, since 2×6643351062051² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6643351061994 and 6643351062012.

It is not an unprimeable number, because it can be changed into a prime (6643351062001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1763346 + ... + 4049208.

It is an arithmetic number, because the mean of its divisors is an integer number (603948127440).

Almost surely, 2^{6643351062051} is an apocalyptic number.

6643351062051 is a deficient number, since it is larger than the sum of its proper divisors (3019818976989).

6643351062051 is a wasteful number, since it uses less digits than its factorization.

6643351062051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373946.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 6643351062051 in words is "six trillion, six hundred forty-three billion, three hundred fifty-one million, sixty-two thousand, fifty-one".