4633666681 has 16 divisors (see below), whose sum is σ = 5378088960. Its totient is φ = 3910026960.

The previous prime is 4633666679. The next prime is 4633666699. The reversal of 4633666681 is 1866663364.

It is not a de Polignac number, because 4633666681 - 2¹ = 4633666679 is a prime.

It is a super-2 number, since 2×4633666681² = 42941733821219111522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4633666651) 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, 350860 + ... + 363826.

It is an arithmetic number, because the mean of its divisors is an integer number (336130560).

Almost surely, 2^4633666681 is an apocalyptic number.

It is an amenable number.

4633666681 is a deficient number, since it is larger than the sum of its proper divisors (744422279).

4633666681 is a wasteful number, since it uses less digits than its factorization.

4633666681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13764.

The product of its digits is 2239488, while the sum is 49.

The square root of 4633666681 is about 68071.0414273206. The cubic root of 4633666681 is about 1667.1509720864.

The spelling of 4633666681 in words is "four billion, six hundred thirty-three million, six hundred sixty-six thousand, six hundred eighty-one".