2661064016 has 20 divisors (see below), whose sum is σ = 5552412852. Its totient is φ = 1228183296.

The previous prime is 2661063973. The next prime is 2661064031. The reversal of 2661064016 is 6104601662.

2661064016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 691479616 + 1969584400 = 26296^2 + 44380^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6396581 + ... + 6396996.

Almost surely, 2^2661064016 is an apocalyptic number.

2661064016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2661064016 is an abundant number, since it is smaller than the sum of its proper divisors (2891348836).

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

2661064016 is a wasteful number, since it uses less digits than its factorization.

2661064016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12793598 (or 12793592 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2661064016 is about 51585.5019942619. The cubic root of 2661064016 is about 1385.7507025173.

Adding to 2661064016 its reverse (6104601662), we get a palindrome (8765665678).

The spelling of 2661064016 in words is "two billion, six hundred sixty-one million, sixty-four thousand, sixteen".