2165313080 has 64 divisors (see below), whose sum is σ = 5574320640. Its totient is φ = 741543552.

The previous prime is 2165313067. The next prime is 2165313091. The reversal of 2165313080 is 803135612.

It is a congruent number.

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, 271307 + ... + 279173.

It is an arithmetic number, because the mean of its divisors is an integer number (87098760).

Almost surely, 2^2165313080 is an apocalyptic number.

2165313080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2165313080 is an abundant number, since it is smaller than the sum of its proper divisors (3409007560).

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

2165313080 is a wasteful number, since it uses less digits than its factorization.

2165313080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8868 (or 8864 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2165313080 is about 46532.9246877950. The cubic root of 2165313080 is about 1293.7198243252.

Adding to 2165313080 its reverse (803135612), we get a palindrome (2968448692).

The spelling of 2165313080 in words is "two billion, one hundred sixty-five million, three hundred thirteen thousand, eighty".