2915165820 has 288 divisors, whose sum is σ = 10434009600. Its totient is φ = 603542016.

The previous prime is 2915165819. The next prime is 2915165821. The reversal of 2915165820 is 285615192.

It is an interprime number because it is at equal distance from previous prime (2915165819) and next prime (2915165821).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2915165821) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1283646 + ... + 1285914.

It is an arithmetic number, because the mean of its divisors is an integer number (36229200).

Almost surely, 2^2915165820 is an apocalyptic number.

2915165820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2915165820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5217004800).

2915165820 is an abundant number, since it is smaller than the sum of its proper divisors (7518843780).

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

2915165820 is a wasteful number, since it uses less digits than its factorization.

2915165820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337 (or 2328 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 2915165820 is about 53992.2755586389. The cubic root of 2915165820 is about 1428.5247014526.

The spelling of 2915165820 in words is "two billion, nine hundred fifteen million, one hundred sixty-five thousand, eight hundred twenty".