16546465643 has 2 divisors, whose sum is σ = 16546465644. Its totient is φ = 16546465642.

The previous prime is 16546465631. The next prime is 16546465681. The reversal of 16546465643 is 34656464561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16546465643 - 2⁸ = 16546465387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16546465591 and 16546465600.

It is not a weakly prime, because it can be changed into another prime (16546465843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8273232821 + 8273232822.

It is an arithmetic number, because the mean of its divisors is an integer number (8273232822).

Almost surely, 2^16546465643 is an apocalyptic number.

16546465643 is a deficient number, since it is larger than the sum of its proper divisors (1).

16546465643 is an equidigital number, since it uses as much as digits as its factorization.

16546465643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 50.

The spelling of 16546465643 in words is "sixteen billion, five hundred forty-six million, four hundred sixty-five thousand, six hundred forty-three".