169447814910149 has 2 divisors, whose sum is σ = 169447814910150. Its totient is φ = 169447814910148.

The previous prime is 169447814910133. The next prime is 169447814910181. The reversal of 169447814910149 is 941019418744961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157036236588100 + 12411578322049 = 12531410^2 + 3523007^2 .

It is a cyclic number.

It is not a de Polignac number, because 169447814910149 - 2⁴ = 169447814910133 is a prime.

It is a super-2 number, since 2×169447814910149² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169447814910449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84723907455074 + 84723907455075.

It is an arithmetic number, because the mean of its divisors is an integer number (84723907455075).

Almost surely, 2^{169447814910149} is an apocalyptic number.

It is an amenable number.

169447814910149 is a deficient number, since it is larger than the sum of its proper divisors (1).

169447814910149 is an equidigital number, since it uses as much as digits as its factorization.

169447814910149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62705664, while the sum is 68.

The spelling of 169447814910149 in words is "one hundred sixty-nine trillion, four hundred forty-seven billion, eight hundred fourteen million, nine hundred ten thousand, one hundred forty-nine".