18101400166103 has 2 divisors, whose sum is σ = 18101400166104. Its totient is φ = 18101400166102.

The previous prime is 18101400166079. The next prime is 18101400166117. The reversal of 18101400166103 is 30166100410181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18101400166103 - 2⁶ = 18101400166039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18101400166103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18101400166153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9050700083051 + 9050700083052.

It is an arithmetic number, because the mean of its divisors is an integer number (9050700083052).

Almost surely, 2^{18101400166103} is an apocalyptic number.

18101400166103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18101400166103 is an equidigital number, since it uses as much as digits as its factorization.

18101400166103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

Adding to 18101400166103 its reverse (30166100410181), we get a palindrome (48267500576284).

The spelling of 18101400166103 in words is "eighteen trillion, one hundred one billion, four hundred million, one hundred sixty-six thousand, one hundred three".