2660532974928 has 480 divisors, whose sum is σ = 8387485666560. Its totient is φ = 783299911680.

The previous prime is 2660532974873. The next prime is 2660532974941. The reversal of 2660532974928 is 8294792350662.

It is a happy number.

2660532974928 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 53 + 2 + 97 + 492 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 523621348 + ... + 523626428.

It is an arithmetic number, because the mean of its divisors is an integer number (17473928472).

Almost surely, 2^{2660532974928} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2660532974928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4193742833280).

2660532974928 is an abundant number, since it is smaller than the sum of its proper divisors (5726952691632).

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

2660532974928 is a wasteful number, since it uses less digits than its factorization.

2660532974928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5347 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 63.

The spelling of 2660532974928 in words is "two trillion, six hundred sixty billion, five hundred thirty-two million, nine hundred seventy-four thousand, nine hundred twenty-eight".