11975577755 has 8 divisors (see below), whose sum is σ = 14374627872. Its totient is φ = 9577839168.

The previous prime is 11975577737. The next prime is 11975577763. The reversal of 11975577755 is 55777557911.

It is a happy number.

11975577755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11975577755 - 2¹⁴ = 11975561371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11975577694 and 11975577703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307679 + ... + 344408.

It is an arithmetic number, because the mean of its divisors is an integer number (1796828484).

Almost surely, 2^11975577755 is an apocalyptic number.

11975577755 is a deficient number, since it is larger than the sum of its proper divisors (2399050117).

11975577755 is an equidigital number, since it uses as much as digits as its factorization.

11975577755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655765.

The product of its digits is 13505625, while the sum is 59.

The spelling of 11975577755 in words is "eleven billion, nine hundred seventy-five million, five hundred seventy-seven thousand, seven hundred fifty-five".