16138958603 has 2 divisors, whose sum is σ = 16138958604. Its totient is φ = 16138958602.

The previous prime is 16138958597. The next prime is 16138958651. The reversal of 16138958603 is 30685983161.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16138958603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16138958683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8069479301 + 8069479302.

It is an arithmetic number, because the mean of its divisors is an integer number (8069479302).

Almost surely, 2^16138958603 is an apocalyptic number.

16138958603 is a deficient number, since it is larger than the sum of its proper divisors (1).

16138958603 is an equidigital number, since it uses as much as digits as its factorization.

16138958603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 16138958603 in words is "sixteen billion, one hundred thirty-eight million, nine hundred fifty-eight thousand, six hundred three".