166105331750 has 16 divisors (see below), whose sum is σ = 310949181504. Its totient is φ = 66442132600.

The previous prime is 166105331747. The next prime is 166105331761. The reversal of 166105331750 is 57133501661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332210414 + ... + 332210913.

It is an arithmetic number, because the mean of its divisors is an integer number (19434323844).

Almost surely, 2^166105331750 is an apocalyptic number.

166105331750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166105331750 is a deficient number, since it is larger than the sum of its proper divisors (144843849754).

166105331750 is an equidigital number, since it uses as much as digits as its factorization.

166105331750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664421344 (or 664421334 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The spelling of 166105331750 in words is "one hundred sixty-six billion, one hundred five million, three hundred thirty-one thousand, seven hundred fifty".