1916996611 has 2 divisors, whose sum is σ = 1916996612. Its totient is φ = 1916996610.

The previous prime is 1916996597. The next prime is 1916996639. The reversal of 1916996611 is 1166996191.

It is a weak prime.

It is an emirp because it is prime and its reverse (1166996191) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1199669161 and 1619669911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1916996611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1916996311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 958498305 + 958498306.

It is an arithmetic number, because the mean of its divisors is an integer number (958498306).

Almost surely, 2^1916996611 is an apocalyptic number.

1916996611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1916996611 is an equidigital number, since it uses as much as digits as its factorization.

1916996611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 49.

The square root of 1916996611 is about 43783.5198562199. The cubic root of 1916996611 is about 1242.2445927851.

The spelling of 1916996611 in words is "one billion, nine hundred sixteen million, nine hundred ninety-six thousand, six hundred eleven".