2064516541081 has 2 divisors, whose sum is σ = 2064516541082. Its totient is φ = 2064516541080.

The previous prime is 2064516541027. The next prime is 2064516541117. The reversal of 2064516541081 is 1801456154602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1541123616400 + 523392924681 = 1241420^2 + 723459^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064516541081 - 2¹³ = 2064516532889 is a prime.

It is a super-2 number, since 2×2064516541081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2064516541001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032258270540 + 1032258270541.

It is an arithmetic number, because the mean of its divisors is an integer number (1032258270541).

Almost surely, 2^{2064516541081} is an apocalyptic number.

It is an amenable number.

2064516541081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064516541081 is an equidigital number, since it uses as much as digits as its factorization.

2064516541081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 2064516541081 in words is "two trillion, sixty-four billion, five hundred sixteen million, five hundred forty-one thousand, eighty-one".