16904047651 has 2 divisors, whose sum is σ = 16904047652. Its totient is φ = 16904047650.

The previous prime is 16904047649. The next prime is 16904047717. The reversal of 16904047651 is 15674040961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16904047651 - 2¹ = 16904047649 is a prime.

Together with 16904047649, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16904047598 and 16904047607.

It is not a weakly prime, because it can be changed into another prime (16904047621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8452023825 + 8452023826.

It is an arithmetic number, because the mean of its divisors is an integer number (8452023826).

Almost surely, 2^16904047651 is an apocalyptic number.

16904047651 is a deficient number, since it is larger than the sum of its proper divisors (1).

16904047651 is an equidigital number, since it uses as much as digits as its factorization.

16904047651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 16904047651 in words is "sixteen billion, nine hundred four million, forty-seven thousand, six hundred fifty-one".