2566625016 has 32 divisors (see below), whose sum is σ = 6695544960. Its totient is φ = 818344032.

The previous prime is 2566625003. The next prime is 2566625041. The reversal of 2566625016 is 6105266652.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2324290 + ... + 2325393.

It is an arithmetic number, because the mean of its divisors is an integer number (209235780).

Almost surely, 2^2566625016 is an apocalyptic number.

It is an amenable number.

2566625016 is an abundant number, since it is smaller than the sum of its proper divisors (4128919944).

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

2566625016 is a wasteful number, since it uses less digits than its factorization.

2566625016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649715 (or 4649711 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 2566625016 is about 50661.8694483336. The cubic root of 2566625016 is about 1369.1598052164.

The spelling of 2566625016 in words is "two billion, five hundred sixty-six million, six hundred twenty-five thousand, sixteen".