1609327215636 has 144 divisors (see below), whose sum is σ = 4463964400896. Its totient is φ = 449737080576.

The previous prime is 1609327215623. The next prime is 1609327215653. The reversal of 1609327215636 is 6365127239061.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45222346 + ... + 45257918.

It is an arithmetic number, because the mean of its divisors is an integer number (30999752784).

Almost surely, 2^{1609327215636} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1609327215636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2231982200448).

1609327215636 is an abundant number, since it is smaller than the sum of its proper divisors (2854637185260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1609327215636 is a wasteful number, since it uses less digits than its factorization.

1609327215636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37278 (or 37269 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 1609327215636 in words is "one trillion, six hundred nine billion, three hundred twenty-seven million, two hundred fifteen thousand, six hundred thirty-six".