2516565612 has 24 divisors (see below), whose sum is σ = 6405803712. Its totient is φ = 762595600.

The previous prime is 2516565587. The next prime is 2516565643. The reversal of 2516565612 is 2165656152.

It is a happy number.

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, 9532314 + ... + 9532577.

It is an arithmetic number, because the mean of its divisors is an integer number (266908488).

Almost surely, 2^2516565612 is an apocalyptic number.

2516565612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2516565612 is an abundant number, since it is smaller than the sum of its proper divisors (3889238100).

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

2516565612 is a wasteful number, since it uses less digits than its factorization.

2516565612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19064909 (or 19064907 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 2516565612 is about 50165.3826059365. The cubic root of 2516565612 is about 1360.1999439308.

The spelling of 2516565612 in words is "two billion, five hundred sixteen million, five hundred sixty-five thousand, six hundred twelve".