196903311641 has 2 divisors, whose sum is σ = 196903311642. Its totient is φ = 196903311640.

The previous prime is 196903311637. The next prime is 196903311691. The reversal of 196903311641 is 146113309691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109100732416 + 87802579225 = 330304^2 + 296315^2 .

It is a cyclic number.

It is not a de Polignac number, because 196903311641 - 2² = 196903311637 is a prime.

It is a super-2 number, since 2×196903311641² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 196903311592 and 196903311601.

It is not a weakly prime, because it can be changed into another prime (196903311691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98451655820 + 98451655821.

It is an arithmetic number, because the mean of its divisors is an integer number (98451655821).

Almost surely, 2^196903311641 is an apocalyptic number.

It is an amenable number.

196903311641 is a deficient number, since it is larger than the sum of its proper divisors (1).

196903311641 is an equidigital number, since it uses as much as digits as its factorization.

196903311641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 196903311641 in words is "one hundred ninety-six billion, nine hundred three million, three hundred eleven thousand, six hundred forty-one".