41664429454549 has 4 divisors (see below), whose sum is σ = 45452104859520. Its totient is φ = 37876754049580.

The previous prime is 41664429454547. The next prime is 41664429454567. The reversal of 41664429454549 is 94545492446614.

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 41664429454549 - 2¹ = 41664429454547 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 (41664429454547) 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, 1893837702469 + ... + 1893837702490.

It is an arithmetic number, because the mean of its divisors is an integer number (11363026214880).

Almost surely, 2^{41664429454549} is an apocalyptic number.

It is an amenable number.

41664429454549 is a deficient number, since it is larger than the sum of its proper divisors (3787675404971).

41664429454549 is a wasteful number, since it uses less digits than its factorization.

41664429454549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787675404970.

The product of its digits is 597196800, while the sum is 67.

The spelling of 41664429454549 in words is "forty-one trillion, six hundred sixty-four billion, four hundred twenty-nine million, four hundred fifty-four thousand, five hundred forty-nine".