6662616421315 has 8 divisors (see below), whose sum is σ = 8253047438208. Its totient is φ = 5158154648640.

The previous prime is 6662616421303. The next prime is 6662616421319. The reversal of 6662616421315 is 5131246162666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6662616421315 - 2¹⁹ = 6662615897027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6662616421319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21492310882 + ... + 21492311191.

It is an arithmetic number, because the mean of its divisors is an integer number (1031630929776).

Almost surely, 2^{6662616421315} is an apocalyptic number.

6662616421315 is a deficient number, since it is larger than the sum of its proper divisors (1590431016893).

6662616421315 is a wasteful number, since it uses less digits than its factorization.

6662616421315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42984622109.

The product of its digits is 1866240, while the sum is 49.

The spelling of 6662616421315 in words is "six trillion, six hundred sixty-two billion, six hundred sixteen million, four hundred twenty-one thousand, three hundred fifteen".