166550775145 has 16 divisors (see below), whose sum is σ = 201870506880. Its totient is φ = 131903720704.

The previous prime is 166550775109. The next prime is 166550775203. The reversal of 166550775145 is 541577055661.

166550775145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 166550775145 - 2⁹ = 166550774633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166550775092 and 166550775101.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 298362 + ... + 649708.

It is an arithmetic number, because the mean of its divisors is an integer number (12616906680).

Almost surely, 2^166550775145 is an apocalyptic number.

It is an amenable number.

166550775145 is a deficient number, since it is larger than the sum of its proper divisors (35319731735).

166550775145 is a wasteful number, since it uses less digits than its factorization.

166550775145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352304.

The product of its (nonzero) digits is 4410000, while the sum is 52.

The spelling of 166550775145 in words is "one hundred sixty-six billion, five hundred fifty million, seven hundred seventy-five thousand, one hundred forty-five".