6655210520500 has 48 divisors (see below), whose sum is σ = 14535418060800. Its totient is φ = 2662003936800.

The previous prime is 6655210520479. The next prime is 6655210520503. The reversal of 6655210520500 is 50250125566.

It is a self number, because there is not a number n which added to its sum of digits gives 6655210520500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655210520503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18057061 + ... + 18421939.

It is an arithmetic number, because the mean of its divisors is an integer number (302821209600).

Almost surely, 2^{6655210520500} is an apocalyptic number.

It is an amenable number.

6655210520500 is an abundant number, since it is smaller than the sum of its proper divisors (7880207540300).

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

6655210520500 is a wasteful number, since it uses less digits than its factorization.

6655210520500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401377 (or 401365 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 6655210520500 in words is "six trillion, six hundred fifty-five billion, two hundred ten million, five hundred twenty thousand, five hundred".