40343320015 has 16 divisors (see below), whose sum is σ = 50433334560. Its totient is φ = 30953774080.

The previous prime is 40343319977. The next prime is 40343320021. The reversal of 40343320015 is 51002334304.

It is not a de Polignac number, because 40343320015 - 2²⁹ = 39806449103 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1655674 + ... + 1679863.

It is an arithmetic number, because the mean of its divisors is an integer number (3152083410).

Almost surely, 2^40343320015 is an apocalyptic number.

40343320015 is a deficient number, since it is larger than the sum of its proper divisors (10090014545).

40343320015 is a wasteful number, since it uses less digits than its factorization.

40343320015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335642.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 40343320015 its reverse (51002334304), we get a palindrome (91345654319).

The spelling of 40343320015 in words is "forty billion, three hundred forty-three million, three hundred twenty thousand, fifteen".