2660505612 has 12 divisors (see below), whose sum is σ = 6207846456. Its totient is φ = 886835200.

The previous prime is 2660505599. The next prime is 2660505623. The reversal of 2660505612 is 2165050662.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2660505612² = 14156580222966989088, which contains 22 as substring.

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, 110854389 + ... + 110854412.

It is an arithmetic number, because the mean of its divisors is an integer number (517320538).

Almost surely, 2^2660505612 is an apocalyptic number.

It is an amenable number.

2660505612 is an abundant number, since it is smaller than the sum of its proper divisors (3547340844).

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

2660505612 is a wasteful number, since it uses less digits than its factorization.

2660505612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221708808 (or 221708806 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2660505612 is about 51580.0892981003. The cubic root of 2660505612 is about 1385.6537659958.

The spelling of 2660505612 in words is "two billion, six hundred sixty million, five hundred five thousand, six hundred twelve".