44164661 has 2 divisors, whose sum is σ = 44164662. Its totient is φ = 44164660.

The previous prime is 44164639. The next prime is 44164693. The reversal of 44164661 is 16646144.

44164661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (44164693) can be obtained adding 44164661 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29495761 + 14668900 = 5431^2 + 3830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44164661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44164961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22082330 + 22082331.

It is an arithmetic number, because the mean of its divisors is an integer number (22082331).

Almost surely, 2^44164661 is an apocalyptic number.

It is an amenable number.

44164661 is a deficient number, since it is larger than the sum of its proper divisors (1).

44164661 is an equidigital number, since it uses as much as digits as its factorization.

44164661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 44164661 is about 6645.6497801193. The cubic root of 44164661 is about 353.4746722036.

The spelling of 44164661 in words is "forty-four million, one hundred sixty-four thousand, six hundred sixty-one".