2661530416 has 20 divisors (see below), whose sum is σ = 5282490024. Its totient is φ = 1298307200.

The previous prime is 2661530413. The next prime is 2661530423. The reversal of 2661530416 is 6140351662.

It is not an unprimeable number, because it can be changed into a prime (2661530413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2027950 + ... + 2029261.

Almost surely, 2^2661530416 is an apocalyptic number.

It is an amenable number.

2661530416 is a deficient number, since it is larger than the sum of its proper divisors (2620959608).

2661530416 is a wasteful number, since it uses less digits than its factorization.

2661530416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057260 (or 4057254 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2661530416 is about 51590.0224462056. The cubic root of 2661530416 is about 1385.8316571490.

The spelling of 2661530416 in words is "two billion, six hundred sixty-one million, five hundred thirty thousand, four hundred sixteen".