216690958000969 has 2 divisors, whose sum is σ = 216690958000970. Its totient is φ = 216690958000968.

The previous prime is 216690958000919. The next prime is 216690958000973. The reversal of 216690958000969 is 969000859096612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170172938151225 + 46518019849744 = 13045035^2 + 6820412^2 .

It is a cyclic number.

It is not a de Polignac number, because 216690958000969 - 2⁴⁵ = 181506585912137 is a prime.

It is a super-2 number, since 2×216690958000969² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216690958000898 and 216690958000907.

It is not a weakly prime, because it can be changed into another prime (216690958000919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108345479000484 + 108345479000485.

It is an arithmetic number, because the mean of its divisors is an integer number (108345479000485).

Almost surely, 2^{216690958000969} is an apocalyptic number.

It is an amenable number.

216690958000969 is a deficient number, since it is larger than the sum of its proper divisors (1).

216690958000969 is an equidigital number, since it uses as much as digits as its factorization.

216690958000969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113374080, while the sum is 70.

The spelling of 216690958000969 in words is "two hundred sixteen trillion, six hundred ninety billion, nine hundred fifty-eight million, nine hundred sixty-nine", and thus it is an aban number.