652728504161 has 2 divisors, whose sum is σ = 652728504162. Its totient is φ = 652728504160.

The previous prime is 652728504101. The next prime is 652728504221. The reversal of 652728504161 is 161405827256.

It is a balanced prime because it is at equal distance from previous prime (652728504101) and next prime (652728504221).

It can be written as a sum of positive squares in only one way, i.e., 411465799936 + 241262704225 = 641456^2 + 491185^2 .

It is a cyclic number.

It is not a de Polignac number, because 652728504161 - 2²² = 652724309857 is a prime.

It is not a weakly prime, because it can be changed into another prime (652728504101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326364252080 + 326364252081.

It is an arithmetic number, because the mean of its divisors is an integer number (326364252081).

Almost surely, 2^652728504161 is an apocalyptic number.

It is an amenable number.

652728504161 is a deficient number, since it is larger than the sum of its proper divisors (1).

652728504161 is an equidigital number, since it uses as much as digits as its factorization.

652728504161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 652728504161 in words is "six hundred fifty-two billion, seven hundred twenty-eight million, five hundred four thousand, one hundred sixty-one".