296491940997121 has 2 divisors, whose sum is σ = 296491940997122. Its totient is φ = 296491940997120.

The previous prime is 296491940997113. The next prime is 296491940997143. The reversal of 296491940997121 is 121799049194692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288161998362225 + 8329942634896 = 16975335^2 + 2886164^2 .

It is a cyclic number.

It is not a de Polignac number, because 296491940997121 - 2³ = 296491940997113 is a prime.

It is not a weakly prime, because it can be changed into another prime (296491940997221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148245970498560 + 148245970498561.

It is an arithmetic number, because the mean of its divisors is an integer number (148245970498561).

Almost surely, 2^{296491940997121} is an apocalyptic number.

It is an amenable number.

296491940997121 is a deficient number, since it is larger than the sum of its proper divisors (1).

296491940997121 is an equidigital number, since it uses as much as digits as its factorization.

296491940997121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158723712, while the sum is 73.

The spelling of 296491940997121 in words is "two hundred ninety-six trillion, four hundred ninety-one billion, nine hundred forty million, nine hundred ninety-seven thousand, one hundred twenty-one".