1606352660 has 96 divisors (see below), whose sum is σ = 3853688832. Its totient is φ = 556744320.

The previous prime is 1606352651. The next prime is 1606352681. The reversal of 1606352660 is 662536061.

It is a self number, because there is not a number n which added to its sum of digits gives 1606352660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2646077 + ... + 2646683.

It is an arithmetic number, because the mean of its divisors is an integer number (40142592).

Almost surely, 2^1606352660 is an apocalyptic number.

1606352660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1606352660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1926844416).

1606352660 is an abundant number, since it is smaller than the sum of its proper divisors (2247336172).

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

1606352660 is a wasteful number, since it uses less digits than its factorization.

1606352660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 1606352660 is about 40079.3295852114. The cubic root of 1606352660 is about 1171.1529920146.

The spelling of 1606352660 in words is "one billion, six hundred six million, three hundred fifty-two thousand, six hundred sixty".