16616011727 has 32 divisors (see below), whose sum is σ = 20295275520. Its totient is φ = 13286695680.

The previous prime is 16616011723. The next prime is 16616011733. The reversal of 16616011727 is 72711061661.

It is a cyclic number.

It is not a de Polignac number, because 16616011727 - 2² = 16616011723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16616011723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9543077 + ... + 9544817.

It is an arithmetic number, because the mean of its divisors is an integer number (634227360).

Almost surely, 2^16616011727 is an apocalyptic number.

16616011727 is a deficient number, since it is larger than the sum of its proper divisors (3679263793).

16616011727 is a wasteful number, since it uses less digits than its factorization.

16616011727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823.

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 16616011727 in words is "sixteen billion, six hundred sixteen million, eleven thousand, seven hundred twenty-seven".