75558616322 has 18 divisors (see below), whose sum is σ = 131846823747. Its totient is φ = 32381097924.

The previous prime is 75558616319. The next prime is 75558616327. The reversal of 75558616322 is 22361685557.

It can be written as a sum of positive squares in only one way, i.e., 37779308161 + 37779308161 = 194369^2 + 194369^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=194369.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75558616327) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2707283 + ... + 2735049.

Almost surely, 2^75558616322 is an apocalyptic number.

75558616322 is a deficient number, since it is larger than the sum of its proper divisors (56288207425).

75558616322 is an frugal number, since it uses more digits than its factorization.

75558616322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55550 (or 27776 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 50.

Multiplying 75558616322 by its sum of digits (50), we get a square (3777930816100 = 1943690²).

The spelling of 75558616322 in words is "seventy-five billion, five hundred fifty-eight million, six hundred sixteen thousand, three hundred twenty-two".