5611721201606 has 32 divisors (see below), whose sum is σ = 9092124840960. Its totient is φ = 2582310053664.

The previous prime is 5611721201591. The next prime is 5611721201623. The reversal of 5611721201606 is 6061021271165.

It is a self number, because there is not a number n which added to its sum of digits gives 5611721201606.

It is a congruent number.

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, 13785221 + ... + 14186463.

It is an arithmetic number, because the mean of its divisors is an integer number (284128901280).

Almost surely, 2^{5611721201606} is an apocalyptic number.

5611721201606 is a deficient number, since it is larger than the sum of its proper divisors (3480403639354).

5611721201606 is a wasteful number, since it uses less digits than its factorization.

5611721201606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402860.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 5611721201606 in words is "five trillion, six hundred eleven billion, seven hundred twenty-one million, two hundred one thousand, six hundred six".