166651056 has 120 divisors (see below), whose sum is σ = 547996176. Its totient is φ = 46609920.

The previous prime is 166651007. The next prime is 166651057. The reversal of 166651056 is 650156661.

166651056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 166651056.

It is not an unprimeable number, because it can be changed into a prime (166651057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16546 + ... + 24638.

Almost surely, 2^166651056 is an apocalyptic number.

166651056 is a gapful number since it is divisible by the number (16) 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 166651056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273998088).

166651056 is an abundant number, since it is smaller than the sum of its proper divisors (381345120).

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

166651056 is a wasteful number, since it uses less digits than its factorization.

166651056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8131 (or 8122 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 166651056 is about 12909.3398746799. The cubic root of 166651056 is about 550.3040258508.

The spelling of 166651056 in words is "one hundred sixty-six million, six hundred fifty-one thousand, fifty-six".