216690958000919 has 2 divisors, whose sum is σ = 216690958000920. Its totient is φ = 216690958000918.

The previous prime is 216690958000879. The next prime is 216690958000969. The reversal of 216690958000919 is 919000859096612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216690958000919 - 2⁴⁰ = 215591446373143 is a prime.

It is a super-2 number, since 2×216690958000919² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216690958000969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108345479000459 + 108345479000460.

It is an arithmetic number, because the mean of its divisors is an integer number (108345479000460).

Almost surely, 2^{216690958000919} is an apocalyptic number.

216690958000919 is a deficient number, since it is larger than the sum of its proper divisors (1).

216690958000919 is an equidigital number, since it uses as much as digits as its factorization.

216690958000919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18895680, while the sum is 65.

The spelling of 216690958000919 in words is "two hundred sixteen trillion, six hundred ninety billion, nine hundred fifty-eight million, nine hundred nineteen", and thus it is an aban number.