2655207511321 has 2 divisors, whose sum is σ = 2655207511322. Its totient is φ = 2655207511320.

The previous prime is 2655207511309. The next prime is 2655207511349. The reversal of 2655207511321 is 1231157025562.

2655207511321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1585431021321 + 1069776490000 = 1259139^2 + 1034300^2 .

It is a cyclic number.

It is not a de Polignac number, because 2655207511321 - 2¹³ = 2655207503129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2655207511921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327603755660 + 1327603755661.

It is an arithmetic number, because the mean of its divisors is an integer number (1327603755661).

Almost surely, 2^{2655207511321} is an apocalyptic number.

It is an amenable number.

2655207511321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2655207511321 is an equidigital number, since it uses as much as digits as its factorization.

2655207511321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 2655207511321 in words is "two trillion, six hundred fifty-five billion, two hundred seven million, five hundred eleven thousand, three hundred twenty-one".