651041150161 has 2 divisors, whose sum is σ = 651041150162. Its totient is φ = 651041150160.

The previous prime is 651041150141. The next prime is 651041150171. The reversal of 651041150161 is 161051140156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 636674730561 + 14366419600 = 797919^2 + 119860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-651041150161 is a prime.

It is not a weakly prime, because it can be changed into another prime (651041150141) 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, 325520575080 + 325520575081.

It is an arithmetic number, because the mean of its divisors is an integer number (325520575081).

Almost surely, 2^651041150161 is an apocalyptic number.

It is an amenable number.

651041150161 is a deficient number, since it is larger than the sum of its proper divisors (1).

651041150161 is an equidigital number, since it uses as much as digits as its factorization.

651041150161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 651041150161 in words is "six hundred fifty-one billion, forty-one million, one hundred fifty thousand, one hundred sixty-one".