2566765362 has 64 divisors (see below), whose sum is σ = 6157762560. Its totient is φ = 697376064.

The previous prime is 2566765361. The next prime is 2566765387. The reversal of 2566765362 is 2635676652.

It is not an unprimeable number, because it can be changed into a prime (2566765361) by changing a digit.

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, 159439 + ... + 174797.

It is an arithmetic number, because the mean of its divisors is an integer number (96215040).

Almost surely, 2^2566765362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2566765362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3078881280).

2566765362 is an abundant number, since it is smaller than the sum of its proper divisors (3590997198).

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

2566765362 is a wasteful number, since it uses less digits than its factorization.

2566765362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15567.

The product of its digits is 2721600, while the sum is 48.

The square root of 2566765362 is about 50663.2545539664. The cubic root of 2566765362 is about 1369.1847605044.

The spelling of 2566765362 in words is "two billion, five hundred sixty-six million, seven hundred sixty-five thousand, three hundred sixty-two".