16397001791 has 2 divisors, whose sum is σ = 16397001792. Its totient is φ = 16397001790.

The previous prime is 16397001769. The next prime is 16397001811. The reversal of 16397001791 is 19710079361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16397001791 - 2³⁰ = 15323259967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16397001701) 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, 8198500895 + 8198500896.

It is an arithmetic number, because the mean of its divisors is an integer number (8198500896).

Almost surely, 2^16397001791 is an apocalyptic number.

16397001791 is a deficient number, since it is larger than the sum of its proper divisors (1).

16397001791 is an equidigital number, since it uses as much as digits as its factorization.

16397001791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 44.

The spelling of 16397001791 in words is "sixteen billion, three hundred ninety-seven million, one thousand, seven hundred ninety-one".