2566641930 has 16 divisors (see below), whose sum is σ = 6159940704. Its totient is φ = 684437840.

The previous prime is 2566641919. The next prime is 2566641947. The reversal of 2566641930 is 391466652.

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 7 ways as a sum of consecutive naturals, for example, 42777336 + ... + 42777395.

It is an arithmetic number, because the mean of its divisors is an integer number (384996294).

Almost surely, 2^2566641930 is an apocalyptic number.

2566641930 is an abundant number, since it is smaller than the sum of its proper divisors (3593298774).

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

2566641930 is a wasteful number, since it uses less digits than its factorization.

2566641930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85554741.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 2566641930 is about 50662.0363783376. The cubic root of 2566641930 is about 1369.1628127870.

The spelling of 2566641930 in words is "two billion, five hundred sixty-six million, six hundred forty-one thousand, nine hundred thirty".