166845027603 has 8 divisors (see below), whose sum is σ = 227633526208. Its totient is φ = 108643273704.

The previous prime is 166845027599. The next prime is 166845027637. The reversal of 166845027603 is 306720548661.

166845027603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 166845027603 - 2² = 166845027599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166845020603) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 646686025 + ... + 646686282.

It is an arithmetic number, because the mean of its divisors is an integer number (28454190776).

Almost surely, 2^166845027603 is an apocalyptic number.

166845027603 is a deficient number, since it is larger than the sum of its proper divisors (60788498605).

166845027603 is a wasteful number, since it uses less digits than its factorization.

166845027603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293372353.

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

The spelling of 166845027603 in words is "one hundred sixty-six billion, eight hundred forty-five million, twenty-seven thousand, six hundred three".