166101005560123 has 8 divisors (see below), whose sum is σ = 167313732876288. Its totient is φ = 164888282754624.

The previous prime is 166101005560103. The next prime is 166101005560213. The reversal of 166101005560123 is 321065500101661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166101005560123 - 2⁹ = 166101005559611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166101005560103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120501190 + ... + 121871812.

It is an arithmetic number, because the mean of its divisors is an integer number (20914216609536).

Almost surely, 2^{166101005560123} is an apocalyptic number.

166101005560123 is a deficient number, since it is larger than the sum of its proper divisors (1212727316165).

166101005560123 is a wasteful number, since it uses less digits than its factorization.

166101005560123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255333.

The product of its (nonzero) digits is 32400, while the sum is 37.

Adding to 166101005560123 its reverse (321065500101661), we get a palindrome (487166505661784).

The spelling of 166101005560123 in words is "one hundred sixty-six trillion, one hundred one billion, five million, five hundred sixty thousand, one hundred twenty-three".