16523051135 has 4 divisors (see below), whose sum is σ = 19827661368. Its totient is φ = 13218440904.

The previous prime is 16523051123. The next prime is 16523051183. The reversal of 16523051135 is 53115032561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16523051135 - 2⁶ = 16523051071 is a prime.

It is a super-2 number, since 2×16523051135² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 1652305109 + ... + 1652305118.

It is an arithmetic number, because the mean of its divisors is an integer number (4956915342).

Almost surely, 2^16523051135 is an apocalyptic number.

16523051135 is a deficient number, since it is larger than the sum of its proper divisors (3304610233).

16523051135 is an equidigital number, since it uses as much as digits as its factorization.

16523051135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304610232.

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 16523051135 its reverse (53115032561), we get a palindrome (69638083696).

The spelling of 16523051135 in words is "sixteen billion, five hundred twenty-three million, fifty-one thousand, one hundred thirty-five".