1608695652319 has 4 divisors (see below), whose sum is σ = 1838509316944. Its totient is φ = 1378881987696.

The previous prime is 1608695652287. The next prime is 1608695652367. The reversal of 1608695652319 is 9132565968061.

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 1608695652319 - 2⁵ = 1608695652287 is a prime.

It is a super-2 number, since 2×1608695652319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608695652019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114906832302 + ... + 114906832315.

It is an arithmetic number, because the mean of its divisors is an integer number (459627329236).

Almost surely, 2^{1608695652319} is an apocalyptic number.

1608695652319 is a deficient number, since it is larger than the sum of its proper divisors (229813664625).

1608695652319 is an equidigital number, since it uses as much as digits as its factorization.

1608695652319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229813664624.

The product of its (nonzero) digits is 20995200, while the sum is 61.

The spelling of 1608695652319 in words is "one trillion, six hundred eight billion, six hundred ninety-five million, six hundred fifty-two thousand, three hundred nineteen".