16415728267 has 4 divisors (see below), whose sum is σ = 16421591736. Its totient is φ = 16409864800.

The previous prime is 16415728181. The next prime is 16415728369. The reversal of 16415728267 is 76282751461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16415728267 is a prime.

It is a super-2 number, since 2×16415728267² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 16415728267.

It is not an unprimeable number, because it can be changed into a prime (16415728067) 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, 2927533 + ... + 2933134.

It is an arithmetic number, because the mean of its divisors is an integer number (4105397934).

Almost surely, 2^16415728267 is an apocalyptic number.

16415728267 is a deficient number, since it is larger than the sum of its proper divisors (5863469).

16415728267 is an equidigital number, since it uses as much as digits as its factorization.

16415728267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5863468.

The product of its digits is 1128960, while the sum is 49.

The spelling of 16415728267 in words is "sixteen billion, four hundred fifteen million, seven hundred twenty-eight thousand, two hundred sixty-seven".