166750013331 has 48 divisors (see below), whose sum is σ = 265490065152. Its totient is φ = 100010664000.

The previous prime is 166750013267. The next prime is 166750013333. The reversal of 166750013331 is 133310057661.

It is a happy number.

166750013331 is a `hidden beast` number, since 16 + 6 + 7 + 500 + 133 + 3 + 1 = 666.

166750013331 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 166750013331 - 2⁶ = 166750013267 is a prime.

It is a super-2 number, since 2×166750013331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166750013333) 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 47 ways as a sum of consecutive naturals, for example, 36224076 + ... + 36228678.

It is an arithmetic number, because the mean of its divisors is an integer number (5531043024).

Almost surely, 2^166750013331 is an apocalyptic number.

166750013331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

166750013331 is a deficient number, since it is larger than the sum of its proper divisors (98740051821).

166750013331 is a wasteful number, since it uses less digits than its factorization.

166750013331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344 (or 8341 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The spelling of 166750013331 in words is "one hundred sixty-six billion, seven hundred fifty million, thirteen thousand, three hundred thirty-one".