16790251691 has 2 divisors, whose sum is σ = 16790251692. Its totient is φ = 16790251690.

The previous prime is 16790251663. The next prime is 16790251727. The reversal of 16790251691 is 19615209761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16790251691 - 2¹⁰ = 16790250667 is a prime.

It is a super-3 number, since 3×16790251691³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (16790221691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8395125845 + 8395125846.

It is an arithmetic number, because the mean of its divisors is an integer number (8395125846).

Almost surely, 2^16790251691 is an apocalyptic number.

16790251691 is a deficient number, since it is larger than the sum of its proper divisors (1).

16790251691 is an equidigital number, since it uses as much as digits as its factorization.

16790251691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 16790251691 in words is "sixteen billion, seven hundred ninety million, two hundred fifty-one thousand, six hundred ninety-one".