1606606650616 has 64 divisors (see below), whose sum is σ = 3379630320000. Its totient is φ = 709576018560.

The previous prime is 1606606650557. The next prime is 1606606650637. The reversal of 1606606650616 is 6160566066061.

It is a super-3 number, since 3×1606606650616³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1606606650616.

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, 2072335 + ... + 2740033.

It is an arithmetic number, because the mean of its divisors is an integer number (52806723750).

Almost surely, 2^{1606606650616} 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 1606606650616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689815160000).

1606606650616 is an abundant number, since it is smaller than the sum of its proper divisors (1773023669384).

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

1606606650616 is a wasteful number, since it uses less digits than its factorization.

1606606650616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668492 (or 668488 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 1606606650616 in words is "one trillion, six hundred six billion, six hundred six million, six hundred fifty thousand, six hundred sixteen".