4646645663 has 4 divisors (see below), whose sum is σ = 5069068008. Its totient is φ = 4224223320.

The previous prime is 4646645657. The next prime is 4646645677. The reversal of 4646645663 is 3665466464.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4646645663 - 2⁶ = 4646645599 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 (4646645603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211211156 + ... + 211211177.

It is an arithmetic number, because the mean of its divisors is an integer number (1267267002).

Almost surely, 2^4646645663 is an apocalyptic number.

4646645663 is a deficient number, since it is larger than the sum of its proper divisors (422422345).

4646645663 is a wasteful number, since it uses less digits than its factorization.

4646645663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422422344.

The product of its digits is 7464960, while the sum is 50.

The square root of 4646645663 is about 68166.3088556216. The cubic root of 4646645663 is about 1668.7060940947.

It can be divided in two parts, 46466 and 45663, that added together give a palindrome (92129).

The spelling of 4646645663 in words is "four billion, six hundred forty-six million, six hundred forty-five thousand, six hundred sixty-three".