2566716672 has 144 divisors (see below), whose sum is σ = 7594915328. Its totient is φ = 764190720.

The previous prime is 2566716643. The next prime is 2566716673. The reversal of 2566716672 is 2766176652.

2566716672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566716673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305358 + ... + 313650.

Almost surely, 2^2566716672 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 2566716672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3797457664).

2566716672 is an abundant number, since it is smaller than the sum of its proper divisors (5028198656).

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

2566716672 is a wasteful number, since it uses less digits than its factorization.

2566716672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8356 (or 8342 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 2566716672 is about 50662.7740259058. The cubic root of 2566716672 is about 1369.1761029117.

The spelling of 2566716672 in words is "two billion, five hundred sixty-six million, seven hundred sixteen thousand, six hundred seventy-two".