18501606007 has 2 divisors, whose sum is σ = 18501606008. Its totient is φ = 18501606006.

The previous prime is 18501605987. The next prime is 18501606017. The reversal of 18501606007 is 70060610581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18501606007 - 2¹¹ = 18501603959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18501606017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9250803003 + 9250803004.

It is an arithmetic number, because the mean of its divisors is an integer number (9250803004).

Almost surely, 2^18501606007 is an apocalyptic number.

18501606007 is a deficient number, since it is larger than the sum of its proper divisors (1).

18501606007 is an equidigital number, since it uses as much as digits as its factorization.

18501606007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 18501606007 in words is "eighteen billion, five hundred one million, six hundred six thousand, seven".