2015340816 has 40 divisors (see below), whose sum is σ = 5208570400. Its totient is φ = 671486976.

The previous prime is 2015340809. The next prime is 2015340823. The reversal of 2015340816 is 6180435102.

It is an interprime number because it is at equal distance from previous prime (2015340809) and next prime (2015340823).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120960 + ... + 136608.

It is an arithmetic number, because the mean of its divisors is an integer number (130214260).

Almost surely, 2^2015340816 is an apocalyptic number.

It is an amenable number.

2015340816 is an abundant number, since it is smaller than the sum of its proper divisors (3193229584).

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

2015340816 is a wasteful number, since it uses less digits than its factorization.

2015340816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18343 (or 18337 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2015340816 is about 44892.5474438687. The cubic root of 2015340816 is about 1263.1342179085.

Adding to 2015340816 its reverse (6180435102), we get a palindrome (8195775918).

The spelling of 2015340816 in words is "two billion, fifteen million, three hundred forty thousand, eight hundred sixteen".