755011566161 has 4 divisors (see below), whose sum is σ = 755153145012. Its totient is φ = 754869987312.

The previous prime is 755011566157. The next prime is 755011566247. The reversal of 755011566161 is 161665110557.

It is a happy number.

755011566161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 619753115536 + 135258450625 = 787244^2 + 367775^2 .

It is a cyclic number.

It is not a de Polignac number, because 755011566161 - 2² = 755011566157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (755011566151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70781426 + ... + 70792091.

It is an arithmetic number, because the mean of its divisors is an integer number (188788286253).

Almost surely, 2^755011566161 is an apocalyptic number.

It is an amenable number.

755011566161 is a deficient number, since it is larger than the sum of its proper divisors (141578851).

755011566161 is a wasteful number, since it uses less digits than its factorization.

755011566161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141578850.

The product of its (nonzero) digits is 189000, while the sum is 44.

The spelling of 755011566161 in words is "seven hundred fifty-five billion, eleven million, five hundred sixty-six thousand, one hundred sixty-one".