220171064 has 8 divisors (see below), whose sum is σ = 412820760. Its totient is φ = 110085528.

The previous prime is 220171057. The next prime is 220171073. The reversal of 220171064 is 460171022.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13760684 + ... + 13760699.

It is an arithmetic number, because the mean of its divisors is an integer number (51602595).

Almost surely, 2^220171064 is an apocalyptic number.

It is an amenable number.

220171064 is a deficient number, since it is larger than the sum of its proper divisors (192649696).

220171064 is a wasteful number, since it uses less digits than its factorization.

220171064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27521389 (or 27521385 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 220171064 is about 14838.1624199225. The cubic root of 220171064 is about 603.8374999599.

The spelling of 220171064 in words is "two hundred twenty million, one hundred seventy-one thousand, sixty-four".