4531564332666 has 96 divisors (see below), whose sum is σ = 11272329484416. Its totient is φ = 1288818000000.

The previous prime is 4531564332643. The next prime is 4531564332679. The reversal of 4531564332666 is 6662334651354.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55019716 + ... + 55102016.

It is an arithmetic number, because the mean of its divisors is an integer number (117420098796).

Almost surely, 2^{4531564332666} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4531564332666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5636164742208).

4531564332666 is an abundant number, since it is smaller than the sum of its proper divisors (6740765151750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4531564332666 is a wasteful number, since it uses less digits than its factorization.

4531564332666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84308 (or 84305 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 54.

The spelling of 4531564332666 in words is "four trillion, five hundred thirty-one billion, five hundred sixty-four million, three hundred thirty-two thousand, six hundred sixty-six".