166103103431 has 2 divisors, whose sum is σ = 166103103432. Its totient is φ = 166103103430.

The previous prime is 166103103377. The next prime is 166103103443. The reversal of 166103103431 is 134301301661.

166103103431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166103103431 is a prime.

It is a super-2 number, since 2×166103103431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166103103394 and 166103103403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166103103031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83051551715 + 83051551716.

It is an arithmetic number, because the mean of its divisors is an integer number (83051551716).

Almost surely, 2^166103103431 is an apocalyptic number.

166103103431 is a deficient number, since it is larger than the sum of its proper divisors (1).

166103103431 is an equidigital number, since it uses as much as digits as its factorization.

166103103431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 166103103431 in words is "one hundred sixty-six billion, one hundred three million, one hundred three thousand, four hundred thirty-one".