216590825467 has 2 divisors, whose sum is σ = 216590825468. Its totient is φ = 216590825466.

The previous prime is 216590825459. The next prime is 216590825491. The reversal of 216590825467 is 764528095612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216590825467 - 2³ = 216590825459 is a prime.

It is not a weakly prime, because it can be changed into another prime (216590825567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108295412733 + 108295412734.

It is an arithmetic number, because the mean of its divisors is an integer number (108295412734).

Almost surely, 2^216590825467 is an apocalyptic number.

216590825467 is a deficient number, since it is larger than the sum of its proper divisors (1).

216590825467 is an equidigital number, since it uses as much as digits as its factorization.

216590825467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 216590825467 in words is "two hundred sixteen billion, five hundred ninety million, eight hundred twenty-five thousand, four hundred sixty-seven".