2563166364 has 96 divisors (see below), whose sum is σ = 7003293696. Its totient is φ = 720967680.

The previous prime is 2563166357. The next prime is 2563166377. The reversal of 2563166364 is 4636613652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155989 + ... + 171635.

It is an arithmetic number, because the mean of its divisors is an integer number (72950976).

Almost surely, 2^2563166364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2563166364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3501646848).

2563166364 is an abundant number, since it is smaller than the sum of its proper divisors (4440127332).

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

2563166364 is a wasteful number, since it uses less digits than its factorization.

2563166364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15755 (or 15753 counting only the distinct ones).

The product of its digits is 466560, while the sum is 42.

The square root of 2563166364 is about 50627.7232749015. The cubic root of 2563166364 is about 1368.5445256249.

The spelling of 2563166364 in words is "two billion, five hundred sixty-three million, one hundred sixty-six thousand, three hundred sixty-four".