75321610603551 has 32 divisors (see below), whose sum is σ = 125396066718720. Its totient is φ = 44336466437472.

The previous prime is 75321610603489. The next prime is 75321610603637. The reversal of 75321610603551 is 15530601612357.

75321610603551 is a `hidden beast` number, since 7 + 5 + 3 + 21 + 6 + 10 + 60 + 3 + 551 = 666.

It is not a de Polignac number, because 75321610603551 - 2²¹ = 75321608506399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75321610603497 and 75321610603506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75321610603051) 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 31 ways as a sum of consecutive naturals, for example, 4665024171 + ... + 4665040316.

It is an arithmetic number, because the mean of its divisors is an integer number (3918627084960).

Almost surely, 2^{75321610603551} is an apocalyptic number.

75321610603551 is a deficient number, since it is larger than the sum of its proper divisors (50074456115169).

75321610603551 is a wasteful number, since it uses less digits than its factorization.

75321610603551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9330064532 (or 9330064526 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 75321610603551 in words is "seventy-five trillion, three hundred twenty-one billion, six hundred ten million, six hundred three thousand, five hundred fifty-one".