6615438345166 has 16 divisors (see below), whose sum is σ = 11340983923200. Its totient is φ = 2835129743640.

The previous prime is 6615438345149. The next prime is 6615438345169.

It is a happy number.

6615438345166 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6615438345166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615438345169) 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, 4132266 + ... + 5505133.

It is an arithmetic number, because the mean of its divisors is an integer number (708811495200).

Almost surely, 2^{6615438345166} is an apocalyptic number.

6615438345166 is a deficient number, since it is larger than the sum of its proper divisors (4725545578034).

6615438345166 is a wasteful number, since it uses less digits than its factorization.

6615438345166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686439.

The product of its digits is 37324800, while the sum is 58.

The spelling of 6615438345166 in words is "six trillion, six hundred fifteen billion, four hundred thirty-eight million, three hundred forty-five thousand, one hundred sixty-six".