40445501653 has 2 divisors, whose sum is σ = 40445501654. Its totient is φ = 40445501652.

The previous prime is 40445501497. The next prime is 40445501689. The reversal of 40445501653 is 35610554404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40382108209 + 63393444 = 200953^2 + 7962^2 .

It is a cyclic number.

It is not a de Polignac number, because 40445501653 - 2⁹ = 40445501141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40445501353) by changing a digit.

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 as a sum of consecutive naturals, namely, 20222750826 + 20222750827.

It is an arithmetic number, because the mean of its divisors is an integer number (20222750827).

Almost surely, 2^40445501653 is an apocalyptic number.

It is an amenable number.

40445501653 is a deficient number, since it is larger than the sum of its proper divisors (1).

40445501653 is an equidigital number, since it uses as much as digits as its factorization.

40445501653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 40445501653 in words is "forty billion, four hundred forty-five million, five hundred one thousand, six hundred fifty-three".