166500648 has 48 divisors (see below), whose sum is σ = 474676800. Its totient is φ = 52578720.

The previous prime is 166500647. The next prime is 166500671. The reversal of 166500648 is 846005661.

166500648 is a `hidden beast` number, since 1 + 6 + 6 + 5 + 0 + 0 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (166500643) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 59488 + ... + 62223.

It is an arithmetic number, because the mean of its divisors is an integer number (9889100).

Almost surely, 2^166500648 is an apocalyptic number.

166500648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

166500648 is an abundant number, since it is smaller than the sum of its proper divisors (308176152).

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

166500648 is a wasteful number, since it uses less digits than its factorization.

166500648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121742 (or 121735 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 166500648 is about 12903.5130100295. The cubic root of 166500648 is about 550.1384202568.

The spelling of 166500648 in words is "one hundred sixty-six million, five hundred thousand, six hundred forty-eight".