16662207220103 has 2 divisors, whose sum is σ = 16662207220104. Its totient is φ = 16662207220102.

The previous prime is 16662207219991. The next prime is 16662207220129. The reversal of 16662207220103 is 30102270226661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16662207220103 - 2¹⁰ = 16662207219079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16662207220133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8331103610051 + 8331103610052.

It is an arithmetic number, because the mean of its divisors is an integer number (8331103610052).

Almost surely, 2^{16662207220103} is an apocalyptic number.

16662207220103 is a deficient number, since it is larger than the sum of its proper divisors (1).

16662207220103 is an equidigital number, since it uses as much as digits as its factorization.

16662207220103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

Adding to 16662207220103 its reverse (30102270226661), we get a palindrome (46764477446764).

The spelling of 16662207220103 in words is "sixteen trillion, six hundred sixty-two billion, two hundred seven million, two hundred twenty thousand, one hundred three".