166107380 has 48 divisors (see below), whose sum is σ = 366073344. Its totient is φ = 63191040.

The previous prime is 166107377. The next prime is 166107419. The reversal of 166107380 is 83701661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87845 + ... + 89715.

It is an arithmetic number, because the mean of its divisors is an integer number (7626528).

Almost surely, 2^166107380 is an apocalyptic number.

166107380 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 166107380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183036672).

166107380 is an abundant number, since it is smaller than the sum of its proper divisors (199965964).

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

166107380 is a wasteful number, since it uses less digits than its factorization.

166107380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 166107380 is about 12888.2652052167. The cubic root of 166107380 is about 549.7049436690.

The spelling of 166107380 in words is "one hundred sixty-six million, one hundred seven thousand, three hundred eighty".