2402806020161 has 2 divisors, whose sum is σ = 2402806020162. Its totient is φ = 2402806020160.

The previous prime is 2402806020091. The next prime is 2402806020233. The reversal of 2402806020161 is 1610206082042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1402936015936 + 999870004225 = 1184456^2 + 999935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2402806020161 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2402806020661) 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, 1201403010080 + 1201403010081.

It is an arithmetic number, because the mean of its divisors is an integer number (1201403010081).

Almost surely, 2^{2402806020161} is an apocalyptic number.

It is an amenable number.

2402806020161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2402806020161 is an equidigital number, since it uses as much as digits as its factorization.

2402806020161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 2402806020161 in words is "two trillion, four hundred two billion, eight hundred six million, twenty thousand, one hundred sixty-one".