43156560401051 has 4 divisors (see below), whose sum is σ = 43164492139704. Its totient is φ = 43148628662400.

The previous prime is 43156560400999. The next prime is 43156560401089. The reversal of 43156560401051 is 15010406565134.

43156560401051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43156560401051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43156560401651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3965861165 + ... + 3965872046.

It is an arithmetic number, because the mean of its divisors is an integer number (10791123034926).

Almost surely, 2^{43156560401051} is an apocalyptic number.

43156560401051 is a deficient number, since it is larger than the sum of its proper divisors (7931738653).

43156560401051 is an equidigital number, since it uses as much as digits as its factorization.

43156560401051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7931738652.

The product of its (nonzero) digits is 216000, while the sum is 41.

Adding to 43156560401051 its reverse (15010406565134), we get a palindrome (58166966966185).

The spelling of 43156560401051 in words is "forty-three trillion, one hundred fifty-six billion, five hundred sixty million, four hundred one thousand, fifty-one".