6091840561 has 2 divisors, whose sum is σ = 6091840562. Its totient is φ = 6091840560.

The previous prime is 6091840483. The next prime is 6091840567. The reversal of 6091840561 is 1650481906.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5925920400 + 165920161 = 76980^2 + 12881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6091840561 is a prime.

It is a super-2 number, since 2×6091840561² = 74221042841289589442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6091840567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3045920280 + 3045920281.

It is an arithmetic number, because the mean of its divisors is an integer number (3045920281).

Almost surely, 2^6091840561 is an apocalyptic number.

It is an amenable number.

6091840561 is a deficient number, since it is larger than the sum of its proper divisors (1).

6091840561 is an equidigital number, since it uses as much as digits as its factorization.

6091840561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 6091840561 is about 78050.2438240906. The cubic root of 6091840561 is about 1826.3450956648.

The spelling of 6091840561 in words is "six billion, ninety-one million, eight hundred forty thousand, five hundred sixty-one".