1650656412961 has 2 divisors, whose sum is σ = 1650656412962. Its totient is φ = 1650656412960.

The previous prime is 1650656412931. The next prime is 1650656412971. The reversal of 1650656412961 is 1692146560561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1283473739025 + 367182673936 = 1132905^2 + 605956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1650656412961 is a prime.

It is a super-3 number, since 3×1650656412961³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1650656412899 and 1650656412908.

It is not a weakly prime, because it can be changed into another prime (1650656412931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825328206480 + 825328206481.

It is an arithmetic number, because the mean of its divisors is an integer number (825328206481).

Almost surely, 2^{1650656412961} is an apocalyptic number.

It is an amenable number.

1650656412961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650656412961 is an equidigital number, since it uses as much as digits as its factorization.

1650656412961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 1650656412961 in words is "one trillion, six hundred fifty billion, six hundred fifty-six million, four hundred twelve thousand, nine hundred sixty-one".