2665513608377 has 2 divisors, whose sum is σ = 2665513608378. Its totient is φ = 2665513608376.

The previous prime is 2665513608343. The next prime is 2665513608409. The reversal of 2665513608377 is 7738063155662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2425980693136 + 239532915241 = 1557556^2 + 489421^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665513608377 - 2⁶ = 2665513608313 is a prime.

It is not a weakly prime, because it can be changed into another prime (2665513698377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332756804188 + 1332756804189.

It is an arithmetic number, because the mean of its divisors is an integer number (1332756804189).

Almost surely, 2^{2665513608377} is an apocalyptic number.

It is an amenable number.

2665513608377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665513608377 is an equidigital number, since it uses as much as digits as its factorization.

2665513608377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38102400, while the sum is 59.

The spelling of 2665513608377 in words is "two trillion, six hundred sixty-five billion, five hundred thirteen million, six hundred eight thousand, three hundred seventy-seven".