6611075277561 has 24 divisors (see below), whose sum is σ = 10130389233120. Its totient is φ = 4140194207616.

The previous prime is 6611075277517. The next prime is 6611075277589. The reversal of 6611075277561 is 1657725701166.

6611075277561 is a `hidden beast` number, since 6 + 6 + 1 + 1 + 0 + 7 + 5 + 2 + 77 + 561 = 666.

It is not a de Polignac number, because 6611075277561 - 2⁶ = 6611075277497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6611075277498 and 6611075277507.

It is not an unprimeable number, because it can be changed into a prime (6611075270561) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 41229391 + ... + 41389428.

It is an arithmetic number, because the mean of its divisors is an integer number (422099551380).

Almost surely, 2^{6611075277561} is an apocalyptic number.

It is an amenable number.

6611075277561 is a deficient number, since it is larger than the sum of its proper divisors (3519313955559).

6611075277561 is a wasteful number, since it uses less digits than its factorization.

6611075277561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82619365 (or 82619362 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 54.

The spelling of 6611075277561 in words is "six trillion, six hundred eleven billion, seventy-five million, two hundred seventy-seven thousand, five hundred sixty-one".