6141291661 has 2 divisors, whose sum is σ = 6141291662. Its totient is φ = 6141291660.

The previous prime is 6141291589. The next prime is 6141291671. The reversal of 6141291661 is 1661921416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4013222500 + 2128069161 = 63350^2 + 46131^2 .

It is a cyclic number.

It is not a de Polignac number, because 6141291661 - 2¹⁷ = 6141160589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6141291661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6141291671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3070645830 + 3070645831.

It is an arithmetic number, because the mean of its divisors is an integer number (3070645831).

Almost surely, 2^6141291661 is an apocalyptic number.

It is an amenable number.

6141291661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6141291661 is an equidigital number, since it uses as much as digits as its factorization.

6141291661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 6141291661 is about 78366.3936965330. The cubic root of 6141291661 is about 1831.2736275052.

The spelling of 6141291661 in words is "six billion, one hundred forty-one million, two hundred ninety-one thousand, six hundred sixty-one".