2656465549 has 2 divisors, whose sum is σ = 2656465550. Its totient is φ = 2656465548.

The previous prime is 2656465541. The next prime is 2656465583. The reversal of 2656465549 is 9455646562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1863648900 + 792816649 = 43170^2 + 28157^2 .

It is a cyclic number.

It is not a de Polignac number, because 2656465549 - 2³ = 2656465541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2656465496 and 2656465505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656465541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328232774 + 1328232775.

It is an arithmetic number, because the mean of its divisors is an integer number (1328232775).

Almost surely, 2^2656465549 is an apocalyptic number.

It is an amenable number.

2656465549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656465549 is an equidigital number, since it uses as much as digits as its factorization.

2656465549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776000, while the sum is 52.

The square root of 2656465549 is about 51540.9114102574. The cubic root of 2656465549 is about 1384.9520241259.

The spelling of 2656465549 in words is "two billion, six hundred fifty-six million, four hundred sixty-five thousand, five hundred forty-nine".