1616882944 has 18 divisors (see below), whose sum is σ = 3227450450. Its totient is φ = 808441344.

The previous prime is 1616882923. The next prime is 1616882951. The reversal of 1616882944 is 4492886161.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1496761344 + 120121600 = 38688^2 + 10960^2 .

It is a super-2 number, since 2×1616882944² = 5228620909196214272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157719 + ... + 3158230.

Almost surely, 2^1616882944 is an apocalyptic number.

It is an amenable number.

1616882944 is a deficient number, since it is larger than the sum of its proper divisors (1610567506).

1616882944 is an frugal number, since it uses more digits than its factorization.

1616882944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315965 (or 6315951 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The square root of 1616882944 is about 40210.4830112746. The cubic root of 1616882944 is about 1173.7065456475.

The spelling of 1616882944 in words is "one billion, six hundred sixteen million, eight hundred eighty-two thousand, nine hundred forty-four".