2655257045081 has 2 divisors, whose sum is σ = 2655257045082. Its totient is φ = 2655257045080.

The previous prime is 2655257045071. The next prime is 2655257045083. The reversal of 2655257045081 is 1805407525562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2487193943056 + 168063102025 = 1577084^2 + 409955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2655257045081 is a prime.

It is a super-2 number, since 2×2655257045081² (a number of 26 digits) contains 22 as substring.

Together with 2655257045083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2655257045083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327628522540 + 1327628522541.

It is an arithmetic number, because the mean of its divisors is an integer number (1327628522541).

Almost surely, 2^{2655257045081} is an apocalyptic number.

It is an amenable number.

2655257045081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2655257045081 is an equidigital number, since it uses as much as digits as its factorization.

2655257045081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360000, while the sum is 50.

The spelling of 2655257045081 in words is "two trillion, six hundred fifty-five billion, two hundred fifty-seven million, forty-five thousand, eighty-one".