1608428766667 has 8 divisors (see below), whose sum is σ = 1609110835200. Its totient is φ = 1607746841064.

The previous prime is 1608428766631. The next prime is 1608428766689. The reversal of 1608428766667 is 7666678248061.

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 1608428766667 - 2³⁵ = 1574069028299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1608428766067) 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, 26485584 + ... + 26546242.

It is an arithmetic number, because the mean of its divisors is an integer number (201138854400).

Almost surely, 2^{1608428766667} is an apocalyptic number.

1608428766667 is a deficient number, since it is larger than the sum of its proper divisors (682068533).

1608428766667 is an equidigital number, since it uses as much as digits as its factorization.

1608428766667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71465.

The product of its (nonzero) digits is 195084288, while the sum is 67.

The spelling of 1608428766667 in words is "one trillion, six hundred eight billion, four hundred twenty-eight million, seven hundred sixty-six thousand, six hundred sixty-seven".