6660241615 has 8 divisors (see below), whose sum is σ = 8036447328. Its totient is φ = 5298755040.

The previous prime is 6660241613. The next prime is 6660241631. The reversal of 6660241615 is 5161420666.

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

It is not a de Polignac number, because 6660241615 - 2¹ = 6660241613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660241613) 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, 3678787 + ... + 3680596.

It is an arithmetic number, because the mean of its divisors is an integer number (1004555916).

Almost surely, 2^6660241615 is an apocalyptic number.

6660241615 is a deficient number, since it is larger than the sum of its proper divisors (1376205713).

6660241615 is a wasteful number, since it uses less digits than its factorization.

6660241615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7359569.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 6660241615 is about 81610.3033629946. The cubic root of 6660241615 is about 1881.4672429115.

The spelling of 6660241615 in words is "six billion, six hundred sixty million, two hundred forty-one thousand, six hundred fifteen".