166050540 has 144 divisors (see below), whose sum is σ = 532570080. Its totient is φ = 42940800.

The previous prime is 166050529. The next prime is 166050541. The reversal of 166050540 is 45050661.

It is a happy number.

166050540 is a `hidden beast` number, since 1 + 6 + 605 + 0 + 54 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166050541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2338705 + ... + 2338775.

Almost surely, 2^166050540 is an apocalyptic number.

166050540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166050540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266285040).

166050540 is an abundant number, since it is smaller than the sum of its proper divisors (366519540).

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

166050540 is a wasteful number, since it uses less digits than its factorization.

166050540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 166050540 is about 12886.0599098406. The cubic root of 166050540 is about 549.6422356512.

The spelling of 166050540 in words is "one hundred sixty-six million, fifty thousand, five hundred forty".