148921166617 has 2 divisors, whose sum is σ = 148921166618. Its totient is φ = 148921166616.

The previous prime is 148921166599. The next prime is 148921166621. The reversal of 148921166617 is 716661129841.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121315676416 + 27605490201 = 348304^2 + 166149^2 .

It is a cyclic number.

It is not a de Polignac number, because 148921166617 - 2¹⁹ = 148920642329 is a prime.

It is not a weakly prime, because it can be changed into another prime (148921166677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74460583308 + 74460583309.

It is an arithmetic number, because the mean of its divisors is an integer number (74460583309).

Almost surely, 2^148921166617 is an apocalyptic number.

It is an amenable number.

148921166617 is a deficient number, since it is larger than the sum of its proper divisors (1).

148921166617 is an equidigital number, since it uses as much as digits as its factorization.

148921166617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The spelling of 148921166617 in words is "one hundred forty-eight billion, nine hundred twenty-one million, one hundred sixty-six thousand, six hundred seventeen".