43161158551723 has 2 divisors, whose sum is σ = 43161158551724. Its totient is φ = 43161158551722.

The previous prime is 43161158551663. The next prime is 43161158551727. The reversal of 43161158551723 is 32715585116134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43161158551723 - 2²¹ = 43161156454571 is a prime.

It is not a weakly prime, because it can be changed into another prime (43161158551727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21580579275861 + 21580579275862.

It is an arithmetic number, because the mean of its divisors is an integer number (21580579275862).

Almost surely, 2^{43161158551723} is an apocalyptic number.

43161158551723 is a deficient number, since it is larger than the sum of its proper divisors (1).

43161158551723 is an equidigital number, since it uses as much as digits as its factorization.

43161158551723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024000, while the sum is 52.

The spelling of 43161158551723 in words is "forty-three trillion, one hundred sixty-one billion, one hundred fifty-eight million, five hundred fifty-one thousand, seven hundred twenty-three".