1609445375995 has 16 divisors (see below), whose sum is σ = 1937843943840. Its totient is φ = 1283223801600.

The previous prime is 1609445375983. The next prime is 1609445376013. The reversal of 1609445375995 is 5995735449061.

It is a de Polignac number, because none of the positive numbers 2^k-1609445375995 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1609445375995.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1353001 + ... + 2247109.

It is an arithmetic number, because the mean of its divisors is an integer number (121115246490).

Almost surely, 2^{1609445375995} is an apocalyptic number.

1609445375995 is a deficient number, since it is larger than the sum of its proper divisors (328398567845).

1609445375995 is an equidigital number, since it uses as much as digits as its factorization.

1609445375995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895326.

The product of its (nonzero) digits is 183708000, while the sum is 67.

The spelling of 1609445375995 in words is "one trillion, six hundred nine billion, four hundred forty-five million, three hundred seventy-five thousand, nine hundred ninety-five".