16512328724 has 6 divisors (see below), whose sum is σ = 28896575274. Its totient is φ = 8256164360.

The previous prime is 16512328717. The next prime is 16512328733. The reversal of 16512328724 is 42782321561.

It can be written as a sum of positive squares in only one way, i.e., 16246051600 + 266277124 = 127460^2 + 16318^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2064041087 + ... + 2064041094.

It is an arithmetic number, because the mean of its divisors is an integer number (4816095879).

Almost surely, 2^16512328724 is an apocalyptic number.

It is an amenable number.

16512328724 is a deficient number, since it is larger than the sum of its proper divisors (12384246550).

16512328724 is a wasteful number, since it uses less digits than its factorization.

16512328724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128082185 (or 4128082183 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The spelling of 16512328724 in words is "sixteen billion, five hundred twelve million, three hundred twenty-eight thousand, seven hundred twenty-four".