275773066661 has 4 divisors (see below), whose sum is σ = 276222941772. Its totient is φ = 275323191552.

The previous prime is 275773066631. The next prime is 275773066691. The reversal of 275773066661 is 166660377572.

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

It is an interprime number because it is at equal distance from previous prime (275773066631) and next prime (275773066691).

It can be written as a sum of positive squares in 2 ways, for example, as 64012036036 + 211761030625 = 253006^2 + 460175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275773066661 is a prime.

It is a super-2 number, since 2×275773066661² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 275773066597 and 275773066606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275773066631) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 224936636 + ... + 224937861.

It is an arithmetic number, because the mean of its divisors is an integer number (69055735443).

Almost surely, 2^275773066661 is an apocalyptic number.

It is an amenable number.

275773066661 is a deficient number, since it is larger than the sum of its proper divisors (449875111).

275773066661 is an equidigital number, since it uses as much as digits as its factorization.

275773066661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449875110.

The product of its (nonzero) digits is 13335840, while the sum is 56.

The spelling of 275773066661 in words is "two hundred seventy-five billion, seven hundred seventy-three million, sixty-six thousand, six hundred sixty-one".