6545605441 has 2 divisors, whose sum is σ = 6545605442. Its totient is φ = 6545605440.

The previous prime is 6545605439. The next prime is 6545605459. The reversal of 6545605441 is 1445065456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6545457216 + 148225 = 80904^2 + 385^2 .

It is a cyclic number.

It is not a de Polignac number, because 6545605441 - 2¹ = 6545605439 is a prime.

Together with 6545605439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6545605394 and 6545605403.

It is not a weakly prime, because it can be changed into another prime (6545605411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272802720 + 3272802721.

It is an arithmetic number, because the mean of its divisors is an integer number (3272802721).

Almost surely, 2^6545605441 is an apocalyptic number.

It is an amenable number.

6545605441 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545605441 is an equidigital number, since it uses as much as digits as its factorization.

6545605441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 40.

The square root of 6545605441 is about 80904.9160496444. The cubic root of 6545605441 is about 1870.6100977649.

The spelling of 6545605441 in words is "six billion, five hundred forty-five million, six hundred five thousand, four hundred forty-one".