43605650161 has 8 divisors (see below), whose sum is σ = 47483467200. Its totient is φ = 39886111440.

The previous prime is 43605650147. The next prime is 43605650167. The reversal of 43605650161 is 16105650634.

43605650161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 43605650161 - 2²⁹ = 43068779249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43605650161.

It is not an unprimeable number, because it can be changed into a prime (43605650167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39569005 + ... + 39570106.

It is an arithmetic number, because the mean of its divisors is an integer number (5935433400).

Almost surely, 2^43605650161 is an apocalyptic number.

It is an amenable number.

43605650161 is a deficient number, since it is larger than the sum of its proper divisors (3877817039).

43605650161 is a wasteful number, since it uses less digits than its factorization.

43605650161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79139159.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 43605650161 in words is "forty-three billion, six hundred five million, six hundred fifty thousand, one hundred sixty-one".