16144740091 has 2 divisors, whose sum is σ = 16144740092. Its totient is φ = 16144740090.

The previous prime is 16144740089. The next prime is 16144740119. The reversal of 16144740091 is 19004744161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16144740091 - 2¹ = 16144740089 is a prime.

Together with 16144740089, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16144740091.

It is not a weakly prime, because it can be changed into another prime (16144740041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8072370045 + 8072370046.

It is an arithmetic number, because the mean of its divisors is an integer number (8072370046).

Almost surely, 2^16144740091 is an apocalyptic number.

16144740091 is a deficient number, since it is larger than the sum of its proper divisors (1).

16144740091 is an equidigital number, since it uses as much as digits as its factorization.

16144740091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 16144740091 in words is "sixteen billion, one hundred forty-four million, seven hundred forty thousand, ninety-one".