44420661401 has 2 divisors, whose sum is σ = 44420661402. Its totient is φ = 44420661400.

The previous prime is 44420661379. The next prime is 44420661407. The reversal of 44420661401 is 10416602444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39006645001 + 5414016400 = 197501^2 + 73580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44420661401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (44420661407) 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 as a sum of consecutive naturals, namely, 22210330700 + 22210330701.

It is an arithmetic number, because the mean of its divisors is an integer number (22210330701).

Almost surely, 2^44420661401 is an apocalyptic number.

It is an amenable number.

44420661401 is a deficient number, since it is larger than the sum of its proper divisors (1).

44420661401 is an equidigital number, since it uses as much as digits as its factorization.

44420661401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 44420661401 in words is "forty-four billion, four hundred twenty million, six hundred sixty-one thousand, four hundred one".