43661006065751 has 2 divisors, whose sum is σ = 43661006065752. Its totient is φ = 43661006065750.

The previous prime is 43661006065687. The next prime is 43661006065763. The reversal of 43661006065751 is 15756060016634.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43661006065751 - 2⁶ = 43661006065687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43661006065751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43661006085751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21830503032875 + 21830503032876.

It is an arithmetic number, because the mean of its divisors is an integer number (21830503032876).

Almost surely, 2^{43661006065751} is an apocalyptic number.

43661006065751 is a deficient number, since it is larger than the sum of its proper divisors (1).

43661006065751 is an equidigital number, since it uses as much as digits as its factorization.

43661006065751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 43661006065751 in words is "forty-three trillion, six hundred sixty-one billion, six million, sixty-five thousand, seven hundred fifty-one".