3115521616 has 10 divisors (see below), whose sum is σ = 6036323162. Its totient is φ = 1557760800.

The previous prime is 3115521611. The next prime is 3115521679. The reversal of 3115521616 is 6161255113.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3051457600 + 64064016 = 55240^2 + 8004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115521611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97360035 + ... + 97360066.

Almost surely, 2^3115521616 is an apocalyptic number.

It is an amenable number.

3115521616 is a deficient number, since it is larger than the sum of its proper divisors (2920801546).

3115521616 is a wasteful number, since it uses less digits than its factorization.

3115521616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194720109 (or 194720103 counting only the distinct ones).

The product of its digits is 5400, while the sum is 31.

The square root of 3115521616 is about 55816.8578119550. The cubic root of 3115521616 is about 1460.5292407944.

Adding to 3115521616 its reverse (6161255113), we get a palindrome (9276776729).

The spelling of 3115521616 in words is "three billion, one hundred fifteen million, five hundred twenty-one thousand, six hundred sixteen".