43839206161 has 8 divisors (see below), whose sum is σ = 46426037760. Its totient is φ = 41253269568.

The previous prime is 43839206111. The next prime is 43839206197. The reversal of 43839206161 is 16160293834.

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 43839206161 - 2¹¹ = 43839204113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43839206111) 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, 121561 + ... + 320086.

It is an arithmetic number, because the mean of its divisors is an integer number (5803254720).

Almost surely, 2^43839206161 is an apocalyptic number.

It is an amenable number.

43839206161 is a deficient number, since it is larger than the sum of its proper divisors (2586831599).

43839206161 is a wasteful number, since it uses less digits than its factorization.

43839206161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447503.

The product of its (nonzero) digits is 186624, while the sum is 43.

Adding to 43839206161 its reverse (16160293834), we get a palindrome (59999499995).

It can be divided in two parts, 43839 and 206161, that added together give a square (250000 = 500²).

The spelling of 43839206161 in words is "forty-three billion, eight hundred thirty-nine million, two hundred six thousand, one hundred sixty-one".