5644665077 has 2 divisors, whose sum is σ = 5644665078. Its totient is φ = 5644665076.

The previous prime is 5644665071. The next prime is 5644665097. The reversal of 5644665077 is 7705664465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5446587601 + 198077476 = 73801^2 + 14074^2 .

It is a cyclic number.

It is not a de Polignac number, because 5644665077 - 2¹⁴ = 5644648693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5644665071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822332538 + 2822332539.

It is an arithmetic number, because the mean of its divisors is an integer number (2822332539).

Almost surely, 2^5644665077 is an apocalyptic number.

It is an amenable number.

5644665077 is a deficient number, since it is larger than the sum of its proper divisors (1).

5644665077 is an equidigital number, since it uses as much as digits as its factorization.

5644665077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The square root of 5644665077 is about 75130.9861308901. The cubic root of 5644665077 is about 1780.5167330527.

The spelling of 5644665077 in words is "five billion, six hundred forty-four million, six hundred sixty-five thousand, seventy-seven".