1600209721138 has 8 divisors (see below), whose sum is σ = 2743216664832. Its totient is φ = 685804166196.

The previous prime is 1600209721129. The next prime is 1600209721141. The reversal of 1600209721138 is 8311279020061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1600209721138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57150347170 + ... + 57150347197.

It is an arithmetic number, because the mean of its divisors is an integer number (342902083104).

Almost surely, 2^{1600209721138} is an apocalyptic number.

1600209721138 is a deficient number, since it is larger than the sum of its proper divisors (1143006943694).

1600209721138 is a wasteful number, since it uses less digits than its factorization.

1600209721138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114300694376.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 1600209721138 in words is "one trillion, six hundred billion, two hundred nine million, seven hundred twenty-one thousand, one hundred thirty-eight".