2561066514 has 24 divisors (see below), whose sum is σ = 5790238272. Its totient is φ = 816571800.

The previous prime is 2561066483. The next prime is 2561066533. The reversal of 2561066514 is 4156601652.

2561066514 is a `hidden beast` number, since 25 + 61 + 0 + 66 + 514 = 666.

It is a super-2 number, since 2×2561066514² = 13118123378264224392, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3092662 + ... + 3093489.

It is an arithmetic number, because the mean of its divisors is an integer number (241259928).

Almost surely, 2^2561066514 is an apocalyptic number.

2561066514 is an abundant number, since it is smaller than the sum of its proper divisors (3229171758).

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

2561066514 is a wasteful number, since it uses less digits than its factorization.

2561066514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6186182 (or 6186179 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2561066514 is about 50606.9808820878. The cubic root of 2561066514 is about 1368.1707011005.

The spelling of 2561066514 in words is "two billion, five hundred sixty-one million, sixty-six thousand, five hundred fourteen".