166352740 has 48 divisors (see below), whose sum is σ = 366492672. Its totient is φ = 63351936.

The previous prime is 166352737. The next prime is 166352773. The reversal of 166352740 is 47253661.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 166352696 and 166352705.

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, 32389 + ... + 37171.

It is an arithmetic number, because the mean of its divisors is an integer number (7635264).

Almost surely, 2^166352740 is an apocalyptic number.

166352740 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 166352740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183246336).

166352740 is an abundant number, since it is smaller than the sum of its proper divisors (200139932).

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

166352740 is a wasteful number, since it uses less digits than its factorization.

166352740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4876 (or 4874 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 166352740 is about 12897.7804292056. The cubic root of 166352740 is about 549.9754699804.

The spelling of 166352740 in words is "one hundred sixty-six million, three hundred fifty-two thousand, seven hundred forty".