41664537791 has 8 divisors (see below), whose sum is σ = 42304573440. Its totient is φ = 41025036888.

The previous prime is 41664537787. The next prime is 41664537797. The reversal of 41664537791 is 19773546614.

It is a happy number.

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 41664537791 - 2² = 41664537787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41664537797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24770 + ... + 289728.

It is an arithmetic number, because the mean of its divisors is an integer number (5288071680).

Almost surely, 2^41664537791 is an apocalyptic number.

41664537791 is a deficient number, since it is larger than the sum of its proper divisors (640035649).

41664537791 is a wasteful number, since it uses less digits than its factorization.

41664537791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267373.

The product of its digits is 3810240, while the sum is 53.

The spelling of 41664537791 in words is "forty-one billion, six hundred sixty-four million, five hundred thirty-seven thousand, seven hundred ninety-one".