166023416321245 has 16 divisors (see below), whose sum is σ = 227689662043008. Its totient is φ = 113844425647680.

The previous prime is 166023416321239. The next prime is 166023416321263. The reversal of 166023416321245 is 542123614320661.

It is not a de Polignac number, because 166023416321245 - 2⁹ = 166023416320733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166023416321195 and 166023416321204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17255602 + ... + 25095868.

It is an arithmetic number, because the mean of its divisors is an integer number (14230603877688).

Almost surely, 2^{166023416321245} is an apocalyptic number.

It is an amenable number.

166023416321245 is a deficient number, since it is larger than the sum of its proper divisors (61666245721763).

166023416321245 is an equidigital number, since it uses as much as digits as its factorization.

166023416321245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8445300.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 166023416321245 in words is "one hundred sixty-six trillion, twenty-three billion, four hundred sixteen million, three hundred twenty-one thousand, two hundred forty-five".