6615346645 has 8 divisors (see below), whose sum is σ = 7940653056. Its totient is φ = 5290785936.

The previous prime is 6615346643. The next prime is 6615346667. The reversal of 6615346645 is 5466435166.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6615346645 - 2¹ = 6615346643 is a prime.

It is a super-2 number, since 2×6615346645² = 87525622467025512050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6615346595 and 6615346604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615346643) 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 7 ways as a sum of consecutive naturals, for example, 166717 + ... + 202546.

It is an arithmetic number, because the mean of its divisors is an integer number (992581632).

Almost surely, 2^6615346645 is an apocalyptic number.

It is an amenable number.

6615346645 is a deficient number, since it is larger than the sum of its proper divisors (1325306411).

6615346645 is a wasteful number, since it uses less digits than its factorization.

6615346645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372851.

The product of its digits is 1555200, while the sum is 46.

The square root of 6615346645 is about 81334.7812746798. The cubic root of 6615346645 is about 1877.2302133090.

The spelling of 6615346645 in words is "six billion, six hundred fifteen million, three hundred forty-six thousand, six hundred forty-five".