16507576516 has 12 divisors (see below), whose sum is σ = 28916783532. Its totient is φ = 8245638368.

The previous prime is 16507576489. The next prime is 16507576541. The reversal of 16507576516 is 61567570561.

It can be written as a sum of positive squares in 2 ways, for example, as 708092100 + 15799484416 = 26610^2 + 125696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16507576516.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032915 + ... + 2041018.

It is an arithmetic number, because the mean of its divisors is an integer number (2409731961).

Almost surely, 2^16507576516 is an apocalyptic number.

It is an amenable number.

16507576516 is a deficient number, since it is larger than the sum of its proper divisors (12409207016).

16507576516 is a wasteful number, since it uses less digits than its factorization.

16507576516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074950 (or 4074948 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 49.

The spelling of 16507576516 in words is "sixteen billion, five hundred seven million, five hundred seventy-six thousand, five hundred sixteen".