2160521664629 has 2 divisors, whose sum is σ = 2160521664630. Its totient is φ = 2160521664628.

The previous prime is 2160521664617. The next prime is 2160521664701. The reversal of 2160521664629 is 9264661250612.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1537542960529 + 622978704100 = 1239977^2 + 789290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2160521664629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2160521664929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080260832314 + 1080260832315.

It is an arithmetic number, because the mean of its divisors is an integer number (1080260832315).

Almost surely, 2^{2160521664629} is an apocalyptic number.

It is an amenable number.

2160521664629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2160521664629 is an equidigital number, since it uses as much as digits as its factorization.

2160521664629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 2160521664629 in words is "two trillion, one hundred sixty billion, five hundred twenty-one million, six hundred sixty-four thousand, six hundred twenty-nine".