650412620556481 has 2 divisors, whose sum is σ = 650412620556482. Its totient is φ = 650412620556480.

The previous prime is 650412620556469. The next prime is 650412620556521. The reversal of 650412620556481 is 184655026214056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 645888423492225 + 4524197064256 = 25414335^2 + 2127016^2 .

It is a cyclic number.

It is not a de Polignac number, because 650412620556481 - 2⁷ = 650412620556353 is a prime.

It is a super-2 number, since 2×650412620556481² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (650412620556451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325206310278240 + 325206310278241.

It is an arithmetic number, because the mean of its divisors is an integer number (325206310278241).

Almost surely, 2^{650412620556481} is an apocalyptic number.

It is an amenable number.

650412620556481 is a deficient number, since it is larger than the sum of its proper divisors (1).

650412620556481 is an equidigital number, since it uses as much as digits as its factorization.

650412620556481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824000, while the sum is 55.

The spelling of 650412620556481 in words is "six hundred fifty trillion, four hundred twelve billion, six hundred twenty million, five hundred fifty-six thousand, four hundred eighty-one".