166329740 has 24 divisors (see below), whose sum is σ = 349538112. Its totient is φ = 66485120.

The previous prime is 166329733. The next prime is 166329797. The reversal of 166329740 is 47923661.

It is a junction number, because it is equal to n+sod(n) for n = 166329694 and 166329703.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47117 + ... + 50523.

It is an arithmetic number, because the mean of its divisors is an integer number (14564088).

Almost surely, 2^166329740 is an apocalyptic number.

166329740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166329740 is an abundant number, since it is smaller than the sum of its proper divisors (183208372).

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

166329740 is a wasteful number, since it uses less digits than its factorization.

166329740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5857 (or 5855 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 166329740 is about 12896.8887721031. Note that the first 3 decimals coincide. The cubic root of 166329740 is about 549.9501221986.

The spelling of 166329740 in words is "one hundred sixty-six million, three hundred twenty-nine thousand, seven hundred forty".