16865673043 has 2 divisors, whose sum is σ = 16865673044. Its totient is φ = 16865673042.

The previous prime is 16865673031. The next prime is 16865673053. The reversal of 16865673043 is 34037656861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16865673043 - 2⁹ = 16865672531 is a prime.

It is not a weakly prime, because it can be changed into another prime (16865673053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8432836521 + 8432836522.

It is an arithmetic number, because the mean of its divisors is an integer number (8432836522).

Almost surely, 2^16865673043 is an apocalyptic number.

16865673043 is a deficient number, since it is larger than the sum of its proper divisors (1).

16865673043 is an equidigital number, since it uses as much as digits as its factorization.

16865673043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 16865673043 in words is "sixteen billion, eight hundred sixty-five million, six hundred seventy-three thousand, forty-three".