166845027063 has 16 divisors (see below), whose sum is σ = 261351651456. Its totient is φ = 93339875040.

The previous prime is 166845026983. The next prime is 166845027101. The reversal of 166845027063 is 360720548661.

It is not a de Polignac number, because 166845027063 - 2¹³ = 166845018871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166845027163) 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, 194457645 + ... + 194458502.

It is an arithmetic number, because the mean of its divisors is an integer number (16334478216).

Almost surely, 2^166845027063 is an apocalyptic number.

166845027063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

166845027063 is a deficient number, since it is larger than the sum of its proper divisors (94506624393).

166845027063 is a wasteful number, since it uses less digits than its factorization.

166845027063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388916174.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 166845027063 in words is "one hundred sixty-six billion, eight hundred forty-five million, twenty-seven thousand, sixty-three".