16520110606507 has 8 divisors (see below), whose sum is σ = 16731611951040. Its totient is φ = 16308668912640.

The previous prime is 16520110606463. The next prime is 16520110606513. The reversal of 16520110606507 is 70560601102561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16520110606507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16520110606507.

It is not an unprimeable number, because it can be changed into a prime (16520110606537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14355094 + ... + 15463147.

It is an arithmetic number, because the mean of its divisors is an integer number (2091451493880).

Almost surely, 2^{16520110606507} is an apocalyptic number.

16520110606507 is a deficient number, since it is larger than the sum of its proper divisors (211501344533).

16520110606507 is an equidigital number, since it uses as much as digits as its factorization.

16520110606507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29825333.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 16520110606507 in words is "sixteen trillion, five hundred twenty billion, one hundred ten million, six hundred six thousand, five hundred seven".