44566661 has 8 divisors (see below), whose sum is σ = 45811800. Its totient is φ = 43338240.

The previous prime is 44566657. The next prime is 44566667. The reversal of 44566661 is 16666544.

It can be written as a sum of positive squares in 4 ways, for example, as 4813636 + 39753025 = 2194^2 + 6305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44566661 - 2² = 44566657 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 (44566667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1325 + ... + 9533.

It is an arithmetic number, because the mean of its divisors is an integer number (5726475).

Almost surely, 2^44566661 is an apocalyptic number.

It is an amenable number.

44566661 is a deficient number, since it is larger than the sum of its proper divisors (1245139).

44566661 is an equidigital number, since it uses as much as digits as its factorization.

44566661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8359.

The product of its digits is 103680, while the sum is 38.

The square root of 44566661 is about 6675.8266154837. The cubic root of 44566661 is about 354.5439120747.

The spelling of 44566661 in words is "forty-four million, five hundred sixty-six thousand, six hundred sixty-one".