2566776652 has 96 divisors (see below), whose sum is σ = 5284097280. Its totient is φ = 1078686720.

The previous prime is 2566776649. The next prime is 2566776679.

2566776652 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2566776652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8360683 + ... + 8360989.

It is an arithmetic number, because the mean of its divisors is an integer number (55042680).

Almost surely, 2^2566776652 is an apocalyptic number.

2566776652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2566776652 is an abundant number, since it is smaller than the sum of its proper divisors (2717320628).

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

2566776652 is a wasteful number, since it uses less digits than its factorization.

2566776652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 549 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 52.

The square root of 2566776652 is about 50663.3659758212. The cubic root of 2566776652 is about 1369.1867679692.

The spelling of 2566776652 in words is "two billion, five hundred sixty-six million, seven hundred seventy-six thousand, six hundred fifty-two".