1610065220 has 24 divisors (see below), whose sum is σ = 3398136000. Its totient is φ = 640788192.

The previous prime is 1610065201. The next prime is 1610065271. The reversal of 1610065220 is 225600161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198290 + ... + 206249.

It is an arithmetic number, because the mean of its divisors is an integer number (141589000).

Almost surely, 2^1610065220 is an apocalyptic number.

1610065220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1610065220 is an abundant number, since it is smaller than the sum of its proper divisors (1788070780).

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

1610065220 is a wasteful number, since it uses less digits than its factorization.

1610065220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404747 (or 404745 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1610065220 is about 40125.6180014713. The cubic root of 1610065220 is about 1172.0545438162.

Adding to 1610065220 its reverse (225600161), we get a palindrome (1835665381).

The spelling of 1610065220 in words is "one billion, six hundred ten million, sixty-five thousand, two hundred twenty".