1996080161 has 2 divisors, whose sum is σ = 1996080162. Its totient is φ = 1996080160.

The previous prime is 1996080137. The next prime is 1996080187. The reversal of 1996080161 is 1610806991.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1037806225 + 958273936 = 32215^2 + 30956^2 .

It is an emirp because it is prime and its reverse (1610806991) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1910809661 and 1669080191.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1996080161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1996080061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998040080 + 998040081.

It is an arithmetic number, because the mean of its divisors is an integer number (998040081).

Almost surely, 2^1996080161 is an apocalyptic number.

It is an amenable number.

1996080161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996080161 is an equidigital number, since it uses as much as digits as its factorization.

1996080161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 1996080161 is about 44677.5129231697. The cubic root of 1996080161 is about 1259.0973969511.

The spelling of 1996080161 in words is "one billion, nine hundred ninety-six million, eighty thousand, one hundred sixty-one".