145616163491 has 2 divisors, whose sum is σ = 145616163492. Its totient is φ = 145616163490.

The previous prime is 145616163437. The next prime is 145616163521. The reversal of 145616163491 is 194361616541.

145616163491 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 not a de Polignac number, because 145616163491 - 2¹⁴ = 145616147107 is a prime.

It is not a weakly prime, because it can be changed into another prime (145616163991) 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, 72808081745 + 72808081746.

It is an arithmetic number, because the mean of its divisors is an integer number (72808081746).

Almost surely, 2^145616163491 is an apocalyptic number.

145616163491 is a deficient number, since it is larger than the sum of its proper divisors (1).

145616163491 is an equidigital number, since it uses as much as digits as its factorization.

145616163491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 47.

The spelling of 145616163491 in words is "one hundred forty-five billion, six hundred sixteen million, one hundred sixty-three thousand, four hundred ninety-one".