41664433647 has 4 divisors (see below), whose sum is σ = 55552578200. Its totient is φ = 27776289096.

The previous prime is 41664433637. The next prime is 41664433649. The reversal of 41664433647 is 74633446614.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 41664433647 - 2¹⁹ = 41663909359 is a prime.

It is a super-2 number, since 2×41664433647² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41664433596 and 41664433605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41664433649) 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, 6944072272 + ... + 6944072277.

It is an arithmetic number, because the mean of its divisors is an integer number (13888144550).

Almost surely, 2^41664433647 is an apocalyptic number.

41664433647 is a deficient number, since it is larger than the sum of its proper divisors (13888144553).

41664433647 is a wasteful number, since it uses less digits than its factorization.

41664433647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13888144552.

The product of its digits is 3483648, while the sum is 48.

The spelling of 41664433647 in words is "forty-one billion, six hundred sixty-four million, four hundred thirty-three thousand, six hundred forty-seven".