40034441665 has 8 divisors (see below), whose sum is σ = 48090811968. Its totient is φ = 31994565360.

The previous prime is 40034441653. The next prime is 40034441683. The reversal of 40034441665 is 56614443004.

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

It is not a de Polignac number, because 40034441665 - 2²³ = 40026053057 is a prime.

It is a Duffinian 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, 4118157 + ... + 4127866.

It is an arithmetic number, because the mean of its divisors is an integer number (6011351496).

Almost surely, 2^40034441665 is an apocalyptic number.

It is an amenable number.

40034441665 is a deficient number, since it is larger than the sum of its proper divisors (8056370303).

40034441665 is an equidigital number, since it uses as much as digits as its factorization.

40034441665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8246999.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 40034441665 its reverse (56614443004), we get a palindrome (96648884669).

The spelling of 40034441665 in words is "forty billion, thirty-four million, four hundred forty-one thousand, six hundred sixty-five".