2661344452 has 24 divisors (see below), whose sum is σ = 5033361536. Its totient is φ = 1223965728.

The previous prime is 2661344449. The next prime is 2661344461. The reversal of 2661344452 is 2544431662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75708 + ... + 105139.

Almost surely, 2^2661344452 is an apocalyptic number.

It is an amenable number.

2661344452 is a deficient number, since it is larger than the sum of its proper divisors (2372017084).

2661344452 is a wasteful number, since it uses less digits than its factorization.

2661344452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181147 (or 181145 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 2661344452 is about 51588.2200894739. The cubic root of 2661344452 is about 1385.7993798799.

The spelling of 2661344452 in words is "two billion, six hundred sixty-one million, three hundred forty-four thousand, four hundred fifty-two".