4032556738561 has 8 divisors (see below), whose sum is σ = 4342814187264. Its totient is φ = 3722307972240.

The previous prime is 4032556738477. The next prime is 4032556738579. The reversal of 4032556738561 is 1658376552304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4032556738561 - 2¹³ = 4032556730369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4030556738561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189531 + ... + 3078976.

It is an arithmetic number, because the mean of its divisors is an integer number (542851773408).

Almost surely, 2^{4032556738561} is an apocalyptic number.

It is an amenable number.

4032556738561 is a deficient number, since it is larger than the sum of its proper divisors (310257448703).

4032556738561 is a wasteful number, since it uses less digits than its factorization.

4032556738561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341191.

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 4032556738561 in words is "four trillion, thirty-two billion, five hundred fifty-six million, seven hundred thirty-eight thousand, five hundred sixty-one".