1916665082279 has 4 divisors (see below), whose sum is σ = 1943660365200. Its totient is φ = 1889669799360.

The previous prime is 1916665082273. The next prime is 1916665082351. The reversal of 1916665082279 is 9722805666191.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1916665082279 - 2⁸ = 1916665082023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916665082273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13497641354 + ... + 13497641495.

It is an arithmetic number, because the mean of its divisors is an integer number (485915091300).

Almost surely, 2^{1916665082279} is an apocalyptic number.

1916665082279 is a deficient number, since it is larger than the sum of its proper divisors (26995282921).

1916665082279 is an equidigital number, since it uses as much as digits as its factorization.

1916665082279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26995282920.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 1916665082279 in words is "one trillion, nine hundred sixteen billion, six hundred sixty-five million, eighty-two thousand, two hundred seventy-nine".