664776332761363 has 2 divisors, whose sum is σ = 664776332761364. Its totient is φ = 664776332761362.

The previous prime is 664776332761339. The next prime is 664776332761487. The reversal of 664776332761363 is 363167233677466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664776332761363 - 2⁴⁵ = 629591960672531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 664776332761292 and 664776332761301.

It is not a weakly prime, because it can be changed into another prime (664776332761313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332388166380681 + 332388166380682.

It is an arithmetic number, because the mean of its divisors is an integer number (332388166380682).

Almost surely, 2^{664776332761363} is an apocalyptic number.

664776332761363 is a deficient number, since it is larger than the sum of its proper divisors (1).

664776332761363 is an equidigital number, since it uses as much as digits as its factorization.

664776332761363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728324864, while the sum is 70.

The spelling of 664776332761363 in words is "six hundred sixty-four trillion, seven hundred seventy-six billion, three hundred thirty-two million, seven hundred sixty-one thousand, three hundred sixty-three".