16615333012 has 12 divisors (see below), whose sum is σ = 29087995860. Its totient is φ = 8304477056.

The previous prime is 16615333001. The next prime is 16615333037. The reversal of 16615333012 is 21033351661.

It can be written as a sum of positive squares in 2 ways, for example, as 11916778896 + 4698554116 = 109164^2 + 68546^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785623 + ... + 806494.

It is an arithmetic number, because the mean of its divisors is an integer number (2423999655).

Almost surely, 2^16615333012 is an apocalyptic number.

It is an amenable number.

16615333012 is a deficient number, since it is larger than the sum of its proper divisors (12472662848).

16615333012 is a wasteful number, since it uses less digits than its factorization.

16615333012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594730 (or 1594728 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 16615333012 its reverse (21033351661), we get a palindrome (37648684673).

The spelling of 16615333012 in words is "sixteen billion, six hundred fifteen million, three hundred thirty-three thousand, twelve".