3663817663 has 8 divisors (see below), whose sum is σ = 4104916560. Its totient is φ = 3240722880.

The previous prime is 3663817639. The next prime is 3663817669. The reversal of 3663817663 is 3667183663.

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 3663817663 - 2¹⁷ = 3663686591 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 (3663817669) 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, 4500598 + ... + 4501411.

It is an arithmetic number, because the mean of its divisors is an integer number (513114570).

Almost surely, 2^3663817663 is an apocalyptic number.

3663817663 is a deficient number, since it is larger than the sum of its proper divisors (441098897).

3663817663 is a wasteful number, since it uses less digits than its factorization.

3663817663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9002057.

The product of its digits is 1959552, while the sum is 49.

The square root of 3663817663 is about 60529.4776369332. The cubic root of 3663817663 is about 1541.6221821158.

The spelling of 3663817663 in words is "three billion, six hundred sixty-three million, eight hundred seventeen thousand, six hundred sixty-three".