166244406003123 has 16 divisors (see below), whose sum is σ = 253516867422720. Its totient is φ = 94924781577216.

The previous prime is 166244406003103. The next prime is 166244406003127. The reversal of 166244406003123 is 321300604442661.

It is not a de Polignac number, because 166244406003123 - 2⁹ = 166244406002611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166244406003127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3000882190 + ... + 3000937587.

It is an arithmetic number, because the mean of its divisors is an integer number (15844804213920).

Almost surely, 2^{166244406003123} is an apocalyptic number.

166244406003123 is a deficient number, since it is larger than the sum of its proper divisors (87272461419597).

166244406003123 is a wasteful number, since it uses less digits than its factorization.

166244406003123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001821106.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 166244406003123 in words is "one hundred sixty-six trillion, two hundred forty-four billion, four hundred six million, three thousand, one hundred twenty-three".