75557888875556 has 12 divisors (see below), whose sum is σ = 133235666644080. Its totient is φ = 37490555548680.

The previous prime is 75557888875541. The next prime is 75557888875583. The reversal of 75557888875556 is 65557888875557.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72097221686 + ... + 72097222733.

It is an arithmetic number, because the mean of its divisors is an integer number (11102972220340).

Almost surely, 2^{75557888875556} is an apocalyptic number.

It is an amenable number.

75557888875556 is a deficient number, since it is larger than the sum of its proper divisors (57677777768524).

75557888875556 is a wasteful number, since it uses less digits than its factorization.

75557888875556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144194444554 (or 144194444552 counting only the distinct ones).

The product of its digits is 131712000000, while the sum is 89.

Subtracting from 75557888875556 its reverse (65557888875557), we obtain a palindrome (9999999999999).

The spelling of 75557888875556 in words is "seventy-five trillion, five hundred fifty-seven billion, eight hundred eighty-eight million, eight hundred seventy-five thousand, five hundred fifty-six".