19304165099 has 8 divisors (see below), whose sum is σ = 19721529408. Its totient is φ = 18887077440.

The previous prime is 19304165087. The next prime is 19304165107. The reversal of 19304165099 is 99056140391.

It is a happy number.

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 19304165099 - 2²⁰ = 19303116523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19304165299) 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, 75119 + ... + 210359.

It is an arithmetic number, because the mean of its divisors is an integer number (2465191176).

Almost surely, 2^19304165099 is an apocalyptic number.

19304165099 is a deficient number, since it is larger than the sum of its proper divisors (417364309).

19304165099 is a wasteful number, since it uses less digits than its factorization.

19304165099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138325.

The product of its (nonzero) digits is 262440, while the sum is 47.

The spelling of 19304165099 in words is "nineteen billion, three hundred four million, one hundred sixty-five thousand, ninety-nine".