2661044320 has 96 divisors (see below), whose sum is σ = 7025701536. Its totient is φ = 944025600.

The previous prime is 2661044231. The next prime is 2661044333. The reversal of 2661044320 is 234401662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53722 + ... + 90598.

It is an arithmetic number, because the mean of its divisors is an integer number (73184391).

Almost surely, 2^2661044320 is an apocalyptic number.

2661044320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2661044320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3512850768).

2661044320 is an abundant number, since it is smaller than the sum of its proper divisors (4364657216).

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

2661044320 is a wasteful number, since it uses less digits than its factorization.

2661044320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36944 (or 36936 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2661044320 is about 51585.3110875567. The cubic root of 2661044320 is about 1385.7472836076.

Adding to 2661044320 its reverse (234401662), we get a palindrome (2895445982).

The spelling of 2661044320 in words is "two billion, six hundred sixty-one million, forty-four thousand, three hundred twenty".