6655567066520 has 32 divisors (see below), whose sum is σ = 14975176734720. Its totient is φ = 2662200011520.

The previous prime is 6655567066487. The next prime is 6655567066543. The reversal of 6655567066520 is 256607655566.

It is a self number, because there is not a number n which added to its sum of digits gives 6655567066520.

It is a congruent number.

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, 3454340 + ... + 5024300.

It is an arithmetic number, because the mean of its divisors is an integer number (467974272960).

Almost surely, 2^{6655567066520} is an apocalyptic number.

It is an amenable number.

6655567066520 is an abundant number, since it is smaller than the sum of its proper divisors (8319609668200).

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

6655567066520 is a wasteful number, since it uses less digits than its factorization.

6655567066520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675955 (or 1675951 counting only the distinct ones).

The product of its (nonzero) digits is 68040000, while the sum is 59.

The spelling of 6655567066520 in words is "six trillion, six hundred fifty-five billion, five hundred sixty-seven million, sixty-six thousand, five hundred twenty".