166486100 has 144 divisors (see below), whose sum is σ = 433097280. Its totient is φ = 54835200.

The previous prime is 166486093. The next prime is 166486109. The reversal of 166486100 is 1684661.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166486109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 542147 + ... + 542453.

It is an arithmetic number, because the mean of its divisors is an integer number (3007620).

Almost surely, 2^166486100 is an apocalyptic number.

166486100 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 166486100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216548640).

166486100 is an abundant number, since it is smaller than the sum of its proper divisors (266611180).

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

166486100 is a wasteful number, since it uses less digits than its factorization.

166486100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 166486100 is about 12902.9492752626. The cubic root of 166486100 is about 550.1223970022.

The spelling of 166486100 in words is "one hundred sixty-six million, four hundred eighty-six thousand, one hundred".