4663660661 has 16 divisors (see below), whose sum is σ = 5240604096. Its totient is φ = 4113360000.

The previous prime is 4663660613. The next prime is 4663660669. The reversal of 4663660661 is 1660663664.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4663660661 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 (4663660669) 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, 53066 + ... + 110196.

It is an arithmetic number, because the mean of its divisors is an integer number (327537756).

Almost surely, 2^4663660661 is an apocalyptic number.

4663660661 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4663660661 is a deficient number, since it is larger than the sum of its proper divisors (576943435).

4663660661 is a wasteful number, since it uses less digits than its factorization.

4663660661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57364.

The product of its (nonzero) digits is 559872, while the sum is 44.

The square root of 4663660661 is about 68290.9998535678. Note that the first 3 decimals coincide. The cubic root of 4663660661 is about 1670.7404250141.

The spelling of 4663660661 in words is "four billion, six hundred sixty-three million, six hundred sixty thousand, six hundred sixty-one".