2615566065 has 16 divisors (see below), whose sum is σ = 4782749568. Its totient is φ = 1195687296.

The previous prime is 2615565949. The next prime is 2615566081. The reversal of 2615566065 is 5606655162.

It is not a de Polignac number, because 2615566065 - 2⁷ = 2615565937 is a prime.

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, 12454972 + ... + 12455181.

It is an arithmetic number, because the mean of its divisors is an integer number (298921848).

Almost surely, 2^2615566065 is an apocalyptic number.

It is an amenable number.

2615566065 is a deficient number, since it is larger than the sum of its proper divisors (2167183503).

2615566065 is a wasteful number, since it uses less digits than its factorization.

2615566065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24910168.

The product of its (nonzero) digits is 324000, while the sum is 42.

The square root of 2615566065 is about 51142.6051839364. The cubic root of 2615566065 is about 1377.8075641480.

The spelling of 2615566065 in words is "two billion, six hundred fifteen million, five hundred sixty-six thousand, sixty-five".