166031445255 has 16 divisors (see below), whose sum is σ = 286084952160. Its totient is φ = 81738557568.

The previous prime is 166031445211. The next prime is 166031445259. The reversal of 166031445255 is 552544130661.

166031445255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166031445255 - 2⁶ = 166031445191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166031445259) 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 15 ways as a sum of consecutive naturals, for example, 425721460 + ... + 425721849.

It is an arithmetic number, because the mean of its divisors is an integer number (17880309510).

Almost surely, 2^166031445255 is an apocalyptic number.

166031445255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166031445255 is a deficient number, since it is larger than the sum of its proper divisors (120053506905).

166031445255 is a wasteful number, since it uses less digits than its factorization.

166031445255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851443330.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 166031445255 in words is "one hundred sixty-six billion, thirty-one million, four hundred forty-five thousand, two hundred fifty-five".