1996373161 has 2 divisors, whose sum is σ = 1996373162. Its totient is φ = 1996373160.

The previous prime is 1996373143. The next prime is 1996373177. The reversal of 1996373161 is 1613736991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1753013161 + 243360000 = 41869^2 + 15600^2 .

It is an emirp because it is prime and its reverse (1613736991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1996373161 - 2⁵ = 1996373129 is a prime.

It is a super-2 number, since 2×1996373161² = 7971011595922263842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1996373191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998186580 + 998186581.

It is an arithmetic number, because the mean of its divisors is an integer number (998186581).

Almost surely, 2^1996373161 is an apocalyptic number.

It is an amenable number.

1996373161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996373161 is an equidigital number, since it uses as much as digits as its factorization.

1996373161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 46.

The square root of 1996373161 is about 44680.7918573519. The cubic root of 1996373161 is about 1259.1590006039.

The spelling of 1996373161 in words is "one billion, nine hundred ninety-six million, three hundred seventy-three thousand, one hundred sixty-one".