16725016459 has 4 divisors (see below), whose sum is σ = 16725297816. Its totient is φ = 16724735104.

The previous prime is 16725016409. The next prime is 16725016487. The reversal of 16725016459 is 95461052761.

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 16725016459 - 2⁹ = 16725015947 is a prime.

It is a super-3 number, since 3×16725016459³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16725016409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12709 + ... + 183334.

It is an arithmetic number, because the mean of its divisors is an integer number (4181324454).

Almost surely, 2^16725016459 is an apocalyptic number.

16725016459 is a deficient number, since it is larger than the sum of its proper divisors (281357).

16725016459 is an equidigital number, since it uses as much as digits as its factorization.

16725016459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281356.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 16725016459 in words is "sixteen billion, seven hundred twenty-five million, sixteen thousand, four hundred fifty-nine".