16836668507 has 2 divisors, whose sum is σ = 16836668508. Its totient is φ = 16836668506.

The previous prime is 16836668489. The next prime is 16836668521. The reversal of 16836668507 is 70586663861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16836668507 - 2¹⁶ = 16836602971 is a prime.

It is not a weakly prime, because it can be changed into another prime (16836668207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8418334253 + 8418334254.

It is an arithmetic number, because the mean of its divisors is an integer number (8418334254).

Almost surely, 2^16836668507 is an apocalyptic number.

16836668507 is a deficient number, since it is larger than the sum of its proper divisors (1).

16836668507 is an equidigital number, since it uses as much as digits as its factorization.

16836668507 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 16836668507 in words is "sixteen billion, eight hundred thirty-six million, six hundred sixty-eight thousand, five hundred seven".