16947500191 has 2 divisors, whose sum is σ = 16947500192. Its totient is φ = 16947500190.

The previous prime is 16947500137. The next prime is 16947500231. The reversal of 16947500191 is 19100574961.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16947500191 - 2³³ = 8357565599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16947500291) 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, 8473750095 + 8473750096.

It is an arithmetic number, because the mean of its divisors is an integer number (8473750096).

Almost surely, 2^16947500191 is an apocalyptic number.

16947500191 is a deficient number, since it is larger than the sum of its proper divisors (1).

16947500191 is an equidigital number, since it uses as much as digits as its factorization.

16947500191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 43.

The spelling of 16947500191 in words is "sixteen billion, nine hundred forty-seven million, five hundred thousand, one hundred ninety-one".