16860806671 has 2 divisors, whose sum is σ = 16860806672. Its totient is φ = 16860806670.

The previous prime is 16860806657. The next prime is 16860806681. The reversal of 16860806671 is 17660806861.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16860806671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16860806681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8430403335 + 8430403336.

It is an arithmetic number, because the mean of its divisors is an integer number (8430403336).

Almost surely, 2^16860806671 is an apocalyptic number.

16860806671 is a deficient number, since it is larger than the sum of its proper divisors (1).

16860806671 is an equidigital number, since it uses as much as digits as its factorization.

16860806671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 16860806671 in words is "sixteen billion, eight hundred sixty million, eight hundred six thousand, six hundred seventy-one".