2605066522056 has 24 divisors (see below), whose sum is σ = 7055388497430. Its totient is φ = 868355507328.

The previous prime is 2605066521971. The next prime is 2605066522073. The reversal of 2605066522056 is 6502256605062.

2605066522056 is a `hidden beast` number, since 2 + 60 + 5 + 0 + 66 + 522 + 0 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2482307385156 + 122759136900 = 1575534^2 + 350370^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18090739665 + ... + 18090739808.

Almost surely, 2^{2605066522056} is an apocalyptic number.

It is an amenable number.

2605066522056 is an abundant number, since it is smaller than the sum of its proper divisors (4450321975374).

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

2605066522056 is a wasteful number, since it uses less digits than its factorization.

2605066522056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36181479485 (or 36181479478 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 2605066522056 in words is "two trillion, six hundred five billion, sixty-six million, five hundred twenty-two thousand, fifty-six".