75556646320773 has 8 divisors (see below), whose sum is σ = 100742630160736. Its totient is φ = 50370880014000.

The previous prime is 75556646320763. The next prime is 75556646320787. The reversal of 75556646320773 is 37702364665557.

It is a happy number.

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

It is not a de Polignac number, because 75556646320773 - 2¹² = 75556646316677 is a prime.

It is a super-2 number, since 2×75556646320773² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75556646320763) 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 7 ways as a sum of consecutive naturals, for example, 53571118 + ... + 54963423.

It is an arithmetic number, because the mean of its divisors is an integer number (12592828770092).

Almost surely, 2^{75556646320773} is an apocalyptic number.

It is an amenable number.

75556646320773 is a deficient number, since it is larger than the sum of its proper divisors (25185983839963).

75556646320773 is a wasteful number, since it uses less digits than its factorization.

75556646320773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108766595.

The product of its (nonzero) digits is 666792000, while the sum is 66.

The spelling of 75556646320773 in words is "seventy-five trillion, five hundred fifty-six billion, six hundred forty-six million, three hundred twenty thousand, seven hundred seventy-three".