2666666962913 has 2 divisors, whose sum is σ = 2666666962914. Its totient is φ = 2666666962912.

The previous prime is 2666666962889. The next prime is 2666666962951. The reversal of 2666666962913 is 3192696666662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2186884931344 + 479782031569 = 1478812^2 + 692663^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666666962913 - 2¹² = 2666666958817 is a prime.

It is a super-2 number, since 2×2666666962913² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2666666962513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333333481456 + 1333333481457.

It is an arithmetic number, because the mean of its divisors is an integer number (1333333481457).

Almost surely, 2^{2666666962913} is an apocalyptic number.

It is an amenable number.

2666666962913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666666962913 is an equidigital number, since it uses as much as digits as its factorization.

2666666962913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272097792, while the sum is 68.

The spelling of 2666666962913 in words is "two trillion, six hundred sixty-six billion, six hundred sixty-six million, nine hundred sixty-two thousand, nine hundred thirteen".