166063140 has 72 divisors (see below), whose sum is σ = 533365560. Its totient is φ = 41677824.

The previous prime is 166063129. The next prime is 166063147. The reversal of 166063140 is 41360661.

166063140 is a `hidden beast` number, since 16 + 606 + 3 + 1 + 40 = 666.

166063140 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 69355584 + 96707556 = 8328^2 + 9834^2 .

It is not an unprimeable number, because it can be changed into a prime (166063147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24075 + ... + 30194.

It is an arithmetic number, because the mean of its divisors is an integer number (7407855).

Almost surely, 2^166063140 is an apocalyptic number.

166063140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166063140 is an abundant number, since it is smaller than the sum of its proper divisors (367302420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166063140 is a wasteful number, since it uses less digits than its factorization.

166063140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54301 (or 54296 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 166063140 is about 12886.5488009785. The cubic root of 166063140 is about 549.6561376777.

The spelling of 166063140 in words is "one hundred sixty-six million, sixty-three thousand, one hundred forty".