20066650103 has 2 divisors, whose sum is σ = 20066650104. Its totient is φ = 20066650102.

The previous prime is 20066650099. The next prime is 20066650181. The reversal of 20066650103 is 30105666002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20066650103 - 2² = 20066650099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20066650603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10033325051 + 10033325052.

It is an arithmetic number, because the mean of its divisors is an integer number (10033325052).

Almost surely, 2^20066650103 is an apocalyptic number.

20066650103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20066650103 is an equidigital number, since it uses as much as digits as its factorization.

20066650103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 20066650103 in words is "twenty billion, sixty-six million, six hundred fifty thousand, one hundred three".