166500930 has 32 divisors (see below), whose sum is σ = 401044608. Its totient is φ = 44240000.

The previous prime is 166500913. The next prime is 166500973. The reversal of 166500930 is 39005661.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1446 + ... + 18305.

It is an arithmetic number, because the mean of its divisors is an integer number (12532644).

Almost surely, 2^166500930 is an apocalyptic number.

166500930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166500930 is an abundant number, since it is smaller than the sum of its proper divisors (234543678).

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

166500930 is a wasteful number, since it uses less digits than its factorization.

166500930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20042.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 166500930 is about 12903.5239372816. The cubic root of 166500930 is about 550.1387308441.

The spelling of 166500930 in words is "one hundred sixty-six million, five hundred thousand, nine hundred thirty".