40646336041 has 4 divisors (see below), whose sum is σ = 40667171584. Its totient is φ = 40625500500.

The previous prime is 40646336039. The next prime is 40646336077. The reversal of 40646336041 is 14063364604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40646336041 - 2¹ = 40646336039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40646336021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10414845 + ... + 10418746.

It is an arithmetic number, because the mean of its divisors is an integer number (10166792896).

Almost surely, 2^40646336041 is an apocalyptic number.

It is an amenable number.

40646336041 is a deficient number, since it is larger than the sum of its proper divisors (20835543).

40646336041 is a wasteful number, since it uses less digits than its factorization.

40646336041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20835542.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 40646336041 in words is "forty billion, six hundred forty-six million, three hundred thirty-six thousand, forty-one".