6620115528 has 64 divisors (see below), whose sum is σ = 19803772800. Its totient is φ = 2036957760.

The previous prime is 6620115499. The next prime is 6620115539. The reversal of 6620115528 is 8255110266.

6620115528 is a `hidden beast` number, since 6 + 620 + 1 + 1 + 5 + 5 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6620115492 and 6620115501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175988 + ... + 1181603.

It is an arithmetic number, because the mean of its divisors is an integer number (309433950).

Almost surely, 2^6620115528 is an apocalyptic number.

It is an amenable number.

6620115528 is an abundant number, since it is smaller than the sum of its proper divisors (13183657272).

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

6620115528 is a wasteful number, since it uses less digits than its factorization.

6620115528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357619 (or 2357609 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 6620115528 is about 81364.0923749537. The cubic root of 6620115528 is about 1877.6811919909.

The spelling of 6620115528 in words is "six billion, six hundred twenty million, one hundred fifteen thousand, five hundred twenty-eight".