1755905975066 has 4 divisors (see below), whose sum is σ = 2633858962602. Its totient is φ = 877952987532.

The previous prime is 1755905975053. The next prime is 1755905975137. The reversal of 1755905975066 is 6605795095571.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1189672299841 + 566233675225 = 1090721^2 + 752485^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1755905974993 and 1755905975011.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 438976493765 + ... + 438976493768.

Almost surely, 2^{1755905975066} is an apocalyptic number.

1755905975066 is a deficient number, since it is larger than the sum of its proper divisors (877952987536).

1755905975066 is an equidigital number, since it uses as much as digits as its factorization.

1755905975066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877952987535.

The product of its (nonzero) digits is 89302500, while the sum is 65.

The spelling of 1755905975066 in words is "one trillion, seven hundred fifty-five billion, nine hundred five million, nine hundred seventy-five thousand, sixty-six".