664106160 has 80 divisors (see below), whose sum is σ = 2061653760. Its totient is φ = 176843520.

The previous prime is 664106159. The next prime is 664106189. The reversal of 664106160 is 61601466.

664106160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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

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, 219055 + ... + 222065.

It is an arithmetic number, because the mean of its divisors is an integer number (25770672).

Almost surely, 2^664106160 is an apocalyptic number.

664106160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

664106160 is an abundant number, since it is smaller than the sum of its proper divisors (1397547600).

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

664106160 is a wasteful number, since it uses less digits than its factorization.

664106160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 664106160 is about 25770.2572746180. The cubic root of 664106160 is about 872.4606255305.

The spelling of 664106160 in words is "six hundred sixty-four million, one hundred six thousand, one hundred sixty".