40445501605 has 8 divisors (see below), whose sum is σ = 49846348152. Its totient is φ = 31481903808.

The previous prime is 40445501497. The next prime is 40445501653. The reversal of 40445501605 is 50610554404.

40445501605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 19524193441 + 20921308164 = 139729^2 + 144642^2 .

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 40445501605 - 2⁷ = 40445501477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109311982 + ... + 109312351.

It is an arithmetic number, because the mean of its divisors is an integer number (6230793519).

Almost surely, 2^40445501605 is an apocalyptic number.

It is an amenable number.

40445501605 is a deficient number, since it is larger than the sum of its proper divisors (9400846547).

40445501605 is a wasteful number, since it uses less digits than its factorization.

40445501605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218624375.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 40445501605 in words is "forty billion, four hundred forty-five million, five hundred one thousand, six hundred five".