43043522161 has 8 divisors (see below), whose sum is σ = 43743271104. Its totient is φ = 42346370640.

The previous prime is 43043522129. The next prime is 43043522189. The reversal of 43043522161 is 16122534034.

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 43043522161 - 2⁵ = 43043522129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43043523161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615930 + ... + 682243.

It is an arithmetic number, because the mean of its divisors is an integer number (5467908888).

Almost surely, 2^43043522161 is an apocalyptic number.

It is an amenable number.

43043522161 is a deficient number, since it is larger than the sum of its proper divisors (699748943).

43043522161 is a wasteful number, since it uses less digits than its factorization.

43043522161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298711.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 43043522161 in words is "forty-three billion, forty-three million, five hundred twenty-two thousand, one hundred sixty-one".