40324347665 has 16 divisors (see below), whose sum is σ = 55306862208. Its totient is φ = 27648531456.

The previous prime is 40324347641. The next prime is 40324347673. The reversal of 40324347665 is 56674342304.

It is not a de Polignac number, because 40324347665 - 2⁶ = 40324347601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407729 + ... + 496881.

It is an arithmetic number, because the mean of its divisors is an integer number (3456678888).

Almost surely, 2^40324347665 is an apocalyptic number.

It is an amenable number.

40324347665 is a deficient number, since it is larger than the sum of its proper divisors (14982514543).

40324347665 is a wasteful number, since it uses less digits than its factorization.

40324347665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102088.

The product of its (nonzero) digits is 1451520, while the sum is 44.

Adding to 40324347665 its reverse (56674342304), we get a palindrome (96998689969).

The spelling of 40324347665 in words is "forty billion, three hundred twenty-four million, three hundred forty-seven thousand, six hundred sixty-five".