43110520561 has 8 divisors (see below), whose sum is σ = 43266510144. Its totient is φ = 42954657360.

The previous prime is 43110520559. The next prime is 43110520577. The reversal of 43110520561 is 16502501134.

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 43110520561 - 2¹ = 43110520559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43110520261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680716 + ... + 741346.

It is an arithmetic number, because the mean of its divisors is an integer number (5408313768).

Almost surely, 2^43110520561 is an apocalyptic number.

It is an amenable number.

43110520561 is a deficient number, since it is larger than the sum of its proper divisors (155989583).

43110520561 is a wasteful number, since it uses less digits than its factorization.

43110520561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63191.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 43110520561 in words is "forty-three billion, one hundred ten million, five hundred twenty thousand, five hundred sixty-one".