166311431330 has 16 divisors (see below), whose sum is σ = 326575174464. Its totient is φ = 60476884080.

The previous prime is 166311431329. The next prime is 166311431333. The reversal of 166311431330 is 33134113661.

166311431330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166311431333) 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, 755960942 + ... + 755961161.

It is an arithmetic number, because the mean of its divisors is an integer number (20410948404).

Almost surely, 2^166311431330 is an apocalyptic number.

166311431330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166311431330 is a deficient number, since it is larger than the sum of its proper divisors (160263743134).

166311431330 is a wasteful number, since it uses less digits than its factorization.

166311431330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511922121.

The product of its (nonzero) digits is 11664, while the sum is 32.

Adding to 166311431330 its reverse (33134113661), we get a palindrome (199445544991).

The spelling of 166311431330 in words is "one hundred sixty-six billion, three hundred eleven million, four hundred thirty-one thousand, three hundred thirty".