16231088491 has 2 divisors, whose sum is σ = 16231088492. Its totient is φ = 16231088490.

The previous prime is 16231088459. The next prime is 16231088527. The reversal of 16231088491 is 19488013261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16231088491 - 2⁵ = 16231088459 is a prime.

It is not a weakly prime, because it can be changed into another prime (16231088411) 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, 8115544245 + 8115544246.

It is an arithmetic number, because the mean of its divisors is an integer number (8115544246).

Almost surely, 2^16231088491 is an apocalyptic number.

16231088491 is a deficient number, since it is larger than the sum of its proper divisors (1).

16231088491 is an equidigital number, since it uses as much as digits as its factorization.

16231088491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 16231088491 in words is "sixteen billion, two hundred thirty-one million, eighty-eight thousand, four hundred ninety-one".