1606986522 has 96 divisors (see below), whose sum is σ = 3745797120. Its totient is φ = 496419840.

The previous prime is 1606986439. The next prime is 1606986539. The reversal of 1606986522 is 2256896061.

1606986522 is a `hidden beast` number, since 1 + 60 + 69 + 8 + 6 + 522 = 666.

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, 4768338 + ... + 4768674.

It is an arithmetic number, because the mean of its divisors is an integer number (39018720).

Almost surely, 2^1606986522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1606986522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1872898560).

1606986522 is an abundant number, since it is smaller than the sum of its proper divisors (2138810598).

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

1606986522 is a wasteful number, since it uses less digits than its factorization.

1606986522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1606986522 is about 40087.2363976366. The cubic root of 1606986522 is about 1171.3070162574.

The spelling of 1606986522 in words is "one billion, six hundred six million, nine hundred eighty-six thousand, five hundred twenty-two".