16536025709 has 4 divisors (see below), whose sum is σ = 18898315104. Its totient is φ = 14173736316.

The previous prime is 16536025703. The next prime is 16536025711. The reversal of 16536025709 is 90752063561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90752063561 = 701 ⋅129460861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16536025709 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 16536025709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16536025703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181144687 + ... + 1181144700.

It is an arithmetic number, because the mean of its divisors is an integer number (4724578776).

Almost surely, 2^16536025709 is an apocalyptic number.

It is an amenable number.

16536025709 is a deficient number, since it is larger than the sum of its proper divisors (2362289395).

16536025709 is an equidigital number, since it uses as much as digits as its factorization.

16536025709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362289394.

The product of its (nonzero) digits is 340200, while the sum is 44.

The spelling of 16536025709 in words is "sixteen billion, five hundred thirty-six million, twenty-five thousand, seven hundred nine".