2165009016 has 32 divisors (see below), whose sum is σ = 5473342800. Its totient is φ = 713560320.

The previous prime is 2165008991. The next prime is 2165009023. The reversal of 2165009016 is 6109005612.

It is a super-2 number, since 2×2165009016² = 9374528078722576512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504655 + ... + 508926.

Almost surely, 2^2165009016 is an apocalyptic number.

It is an amenable number.

2165009016 is an abundant number, since it is smaller than the sum of its proper divisors (3308333784).

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

2165009016 is a wasteful number, since it uses less digits than its factorization.

2165009016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013679 (or 1013675 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2165009016 is about 46529.6573810726. The cubic root of 2165009016 is about 1293.6592646394.

The spelling of 2165009016 in words is "two billion, one hundred sixty-five million, nine thousand, sixteen".