6618808246609 has 16 divisors (see below), whose sum is σ = 7415817256960. Its totient is φ = 5866027231680.

The previous prime is 6618808246601. The next prime is 6618808246627. The reversal of 6618808246609 is 9066428088166.

It is a cyclic number.

It is not a de Polignac number, because 6618808246609 - 2³ = 6618808246601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6618808246601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64609614 + ... + 64711975.

It is an arithmetic number, because the mean of its divisors is an integer number (463488578560).

Almost surely, 2^{6618808246609} is an apocalyptic number.

It is an amenable number.

6618808246609 is a deficient number, since it is larger than the sum of its proper divisors (797009010351).

6618808246609 is a wasteful number, since it uses less digits than its factorization.

6618808246609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129321760.

The product of its (nonzero) digits is 47775744, while the sum is 64.

The spelling of 6618808246609 in words is "six trillion, six hundred eighteen billion, eight hundred eight million, two hundred forty-six thousand, six hundred nine".