6611133666061 has 2 divisors, whose sum is σ = 6611133666062. Its totient is φ = 6611133666060.

The previous prime is 6611133666023. The next prime is 6611133666079. The reversal of 6611133666061 is 1606663311166.

6611133666061 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5162011264036 + 1449122402025 = 2272006^2 + 1203795^2 .

It is a cyclic number.

It is not a de Polignac number, because 6611133666061 - 2²³ = 6611125277453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6611133666001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305566833030 + 3305566833031.

It is an arithmetic number, because the mean of its divisors is an integer number (3305566833031).

Almost surely, 2^{6611133666061} is an apocalyptic number.

It is an amenable number.

6611133666061 is a deficient number, since it is larger than the sum of its proper divisors (1).

6611133666061 is an equidigital number, since it uses as much as digits as its factorization.

6611133666061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 6611133666061 in words is "six trillion, six hundred eleven billion, one hundred thirty-three million, six hundred sixty-six thousand, sixty-one".