6663711355 has 32 divisors (see below), whose sum is σ = 9217152000. Its totient is φ = 4530348672.

The previous prime is 6663711347. The next prime is 6663711367. The reversal of 6663711355 is 5531173666.

It is a cyclic number.

It is not a de Polignac number, because 6663711355 - 2³ = 6663711347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4374624 + ... + 4376146.

It is an arithmetic number, because the mean of its divisors is an integer number (288036000).

Almost surely, 2^6663711355 is an apocalyptic number.

6663711355 is a deficient number, since it is larger than the sum of its proper divisors (2553440645).

6663711355 is a wasteful number, since it uses less digits than its factorization.

6663711355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523.

The product of its digits is 340200, while the sum is 43.

The square root of 6663711355 is about 81631.5585726501. The cubic root of 6663711355 is about 1881.7939111820.

The spelling of 6663711355 in words is "six billion, six hundred sixty-three million, seven hundred eleven thousand, three hundred fifty-five".