677120664001 has 2 divisors, whose sum is σ = 677120664002. Its totient is φ = 677120664000.

The previous prime is 677120663993. The next prime is 677120664013. The reversal of 677120664001 is 100466021776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406819454976 + 270301209025 = 637824^2 + 519905^2 .

It is a cyclic number.

It is not a de Polignac number, because 677120664001 - 2³ = 677120663993 is a prime.

It is not a weakly prime, because it can be changed into another prime (677120668001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338560332000 + 338560332001.

It is an arithmetic number, because the mean of its divisors is an integer number (338560332001).

Almost surely, 2^677120664001 is an apocalyptic number.

It is an amenable number.

677120664001 is a deficient number, since it is larger than the sum of its proper divisors (1).

677120664001 is an equidigital number, since it uses as much as digits as its factorization.

677120664001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

Adding to 677120664001 its reverse (100466021776), we get a palindrome (777586685777).

The spelling of 677120664001 in words is "six hundred seventy-seven billion, one hundred twenty million, six hundred sixty-four thousand, one".