20002660603 has 2 divisors, whose sum is σ = 20002660604. Its totient is φ = 20002660602.

The previous prime is 20002660511. The next prime is 20002660607. The reversal of 20002660603 is 30606620002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20002660603 is a prime.

It is not a weakly prime, because it can be changed into another prime (20002660607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001330301 + 10001330302.

It is an arithmetic number, because the mean of its divisors is an integer number (10001330302).

Almost surely, 2^20002660603 is an apocalyptic number.

20002660603 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002660603 is an equidigital number, since it uses as much as digits as its factorization.

20002660603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The spelling of 20002660603 in words is "twenty billion, two million, six hundred sixty thousand, six hundred three".