1616441608 has 8 divisors (see below), whose sum is σ = 3030828030. Its totient is φ = 808220800.

The previous prime is 1616441599. The next prime is 1616441621. The reversal of 1616441608 is 8061446161.

It can be written as a sum of positive squares in only one way, i.e., 1609774884 + 6666724 = 40122^2 + 2582^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1616441608² = 5225766944147251328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101027593 + ... + 101027608.

Almost surely, 2^1616441608 is an apocalyptic number.

It is an amenable number.

1616441608 is a deficient number, since it is larger than the sum of its proper divisors (1414386422).

1616441608 is a wasteful number, since it uses less digits than its factorization.

1616441608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202055207 (or 202055203 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1616441608 is about 40204.9948140775. The cubic root of 1616441608 is about 1173.5997463085.

Adding to 1616441608 its reverse (8061446161), we get a palindrome (9677887769).

The spelling of 1616441608 in words is "one billion, six hundred sixteen million, four hundred forty-one thousand, six hundred eight".