660226160 has 80 divisors (see below), whose sum is σ = 1698319872. Its totient is φ = 236678400.

The previous prime is 660226139. The next prime is 660226163. The reversal of 660226160 is 61622066.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660226163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57197 + ... + 67763.

Almost surely, 2^660226160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660226160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849159936).

660226160 is an abundant number, since it is smaller than the sum of its proper divisors (1038093712).

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

660226160 is a wasteful number, since it uses less digits than its factorization.

660226160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10662 (or 10656 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 660226160 is about 25694.8664133519. The cubic root of 660226160 is about 870.7582063397.

The spelling of 660226160 in words is "six hundred sixty million, two hundred twenty-six thousand, one hundred sixty".