1916662404019 has 8 divisors (see below), whose sum is σ = 2112460157808. Its totient is φ = 1724457269760.

The previous prime is 1916662403897. The next prime is 1916662404029. The reversal of 1916662404019 is 9104042666191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1916662404019 - 2⁷ = 1916662403891 is a prime.

It is a super-2 number, since 2×1916662404019² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1916662404029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898153762 + ... + 898155895.

It is an arithmetic number, because the mean of its divisors is an integer number (264057519726).

Almost surely, 2^{1916662404019} is an apocalyptic number.

1916662404019 is a deficient number, since it is larger than the sum of its proper divisors (195797753789).

1916662404019 is a wasteful number, since it uses less digits than its factorization.

1916662404019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796309765.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 1916662404019 in words is "one trillion, nine hundred sixteen billion, six hundred sixty-two million, four hundred four thousand, nineteen".