4643266506661 has 16 divisors (see below), whose sum is σ = 4923943444800. Its totient is φ = 4366227086208.

The previous prime is 4643266506643. The next prime is 4643266506673. The reversal of 4643266506661 is 1666056623464.

It is a cyclic number.

It is not a de Polignac number, because 4643266506661 - 2³⁵ = 4608906768293 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 (4643266506601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21416346 + ... + 21632068.

It is an arithmetic number, because the mean of its divisors is an integer number (307746465300).

Almost surely, 2^{4643266506661} is an apocalyptic number.

It is an amenable number.

4643266506661 is a deficient number, since it is larger than the sum of its proper divisors (280676938139).

4643266506661 is a wasteful number, since it uses less digits than its factorization.

4643266506661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224148.

The product of its (nonzero) digits is 22394880, while the sum is 55.

The spelling of 4643266506661 in words is "four trillion, six hundred forty-three billion, two hundred sixty-six million, five hundred six thousand, six hundred sixty-one".