16805690207707 has 2 divisors, whose sum is σ = 16805690207708. Its totient is φ = 16805690207706.

The previous prime is 16805690207701. The next prime is 16805690207717. The reversal of 16805690207707 is 70770209650861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16805690207707 - 2³⁵ = 16771330469339 is a prime.

It is not a weakly prime, because it can be changed into another prime (16805690207701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8402845103853 + 8402845103854.

It is an arithmetic number, because the mean of its divisors is an integer number (8402845103854).

Almost surely, 2^{16805690207707} is an apocalyptic number.

16805690207707 is a deficient number, since it is larger than the sum of its proper divisors (1).

16805690207707 is an equidigital number, since it uses as much as digits as its factorization.

16805690207707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 16805690207707 in words is "sixteen trillion, eight hundred five billion, six hundred ninety million, two hundred seven thousand, seven hundred seven".