1608722616 has 32 divisors (see below), whose sum is σ = 4050748800. Its totient is φ = 532381920.

The previous prime is 1608722611. The next prime is 1608722639. The reversal of 1608722616 is 6162278061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608722611) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 237780 + ... + 244451.

It is an arithmetic number, because the mean of its divisors is an integer number (126585900).

Almost surely, 2^1608722616 is an apocalyptic number.

It is an amenable number.

1608722616 is an abundant number, since it is smaller than the sum of its proper divisors (2442026184).

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

1608722616 is a wasteful number, since it uses less digits than its factorization.

1608722616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482379 (or 482375 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1608722616 is about 40108.8845020651. The cubic root of 1608722616 is about 1171.7286682549.

The spelling of 1608722616 in words is "one billion, six hundred eight million, seven hundred twenty-two thousand, six hundred sixteen".