16101691 has 2 divisors, whose sum is σ = 16101692. Its totient is φ = 16101690.

The previous prime is 16101661. The next prime is 16101707. The reversal of 16101691 is 19610161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16101691 - 2⁷ = 16101563 is a prime.

It is not a weakly prime, because it can be changed into another prime (16101661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8050845 + 8050846.

It is an arithmetic number, because the mean of its divisors is an integer number (8050846).

Almost surely, 2^16101691 is an apocalyptic number.

16101691 is a deficient number, since it is larger than the sum of its proper divisors (1).

16101691 is an equidigital number, since it uses as much as digits as its factorization.

16101691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 16101691 is about 4012.6912415485. The cubic root of 16101691 is about 252.5169272709.

The spelling of 16101691 in words is "sixteen million, one hundred one thousand, six hundred ninety-one".