16616100047 has 2 divisors, whose sum is σ = 16616100048. Its totient is φ = 16616100046.

The previous prime is 16616100041. The next prime is 16616100049. The reversal of 16616100047 is 74000161661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16616100047 - 2²⁰ = 16615051471 is a prime.

Together with 16616100049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16616099986 and 16616100022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16616100041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8308050023 + 8308050024.

It is an arithmetic number, because the mean of its divisors is an integer number (8308050024).

Almost surely, 2^16616100047 is an apocalyptic number.

16616100047 is a deficient number, since it is larger than the sum of its proper divisors (1).

16616100047 is an equidigital number, since it uses as much as digits as its factorization.

16616100047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 16616100047 in words is "sixteen billion, six hundred sixteen million, one hundred thousand, forty-seven".