16868530667 has 2 divisors, whose sum is σ = 16868530668. Its totient is φ = 16868530666.

The previous prime is 16868530603. The next prime is 16868530697. The reversal of 16868530667 is 76603586861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16868530667 - 2⁶ = 16868530603 is a prime.

It is a super-4 number, since 4×16868530667⁴ (a number of 42 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (16868530697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8434265333 + 8434265334.

It is an arithmetic number, because the mean of its divisors is an integer number (8434265334).

Almost surely, 2^16868530667 is an apocalyptic number.

16868530667 is a deficient number, since it is larger than the sum of its proper divisors (1).

16868530667 is an equidigital number, since it uses as much as digits as its factorization.

16868530667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 16868530667 in words is "sixteen billion, eight hundred sixty-eight million, five hundred thirty thousand, six hundred sixty-seven".