16627945227 has 4 divisors (see below), whose sum is σ = 22170593640. Its totient is φ = 11085296816.

The previous prime is 16627945223. The next prime is 16627945241. The reversal of 16627945227 is 72254972661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72254972661 = 3 ⋅24084990887.

It is a cyclic number.

It is not a de Polignac number, because 16627945227 - 2² = 16627945223 is a prime.

It is a super-2 number, since 2×16627945227² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16627945227.

It is not an unprimeable number, because it can be changed into a prime (16627945223) 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, 2771324202 + ... + 2771324207.

It is an arithmetic number, because the mean of its divisors is an integer number (5542648410).

Almost surely, 2^16627945227 is an apocalyptic number.

16627945227 is a deficient number, since it is larger than the sum of its proper divisors (5542648413).

16627945227 is an equidigital number, since it uses as much as digits as its factorization.

16627945227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542648412.

The product of its digits is 2540160, while the sum is 51.

The spelling of 16627945227 in words is "sixteen billion, six hundred twenty-seven million, nine hundred forty-five thousand, two hundred twenty-seven".