166768350016 has 14 divisors (see below), whose sum is σ = 330930944690. Its totient is φ = 83384174976.

The previous prime is 166768350013. The next prime is 166768350043. The reversal of 166768350016 is 610053867661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 166705623616 + 62726400 = 408296^2 + 7920^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166768350013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302877671 + ... + 1302877798.

Almost surely, 2^166768350016 is an apocalyptic number.

166768350016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166768350016 is a deficient number, since it is larger than the sum of its proper divisors (164162594674).

166768350016 is an equidigital number, since it uses as much as digits as its factorization.

166768350016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605755481 (or 2605755471 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 166768350016 in words is "one hundred sixty-six billion, seven hundred sixty-eight million, three hundred fifty thousand, sixteen".