655015015000 has 80 divisors (see below), whose sum is σ = 1624976872200. Its totient is φ = 246593856000.

The previous prime is 655015014977. The next prime is 655015015001. The reversal of 655015015000 is 510510556.

655015015000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 655015015000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655015015001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3768030 + ... + 3938029.

Almost surely, 2^655015015000 is an apocalyptic number.

It is an amenable number.

655015015000 is an abundant number, since it is smaller than the sum of its proper divisors (969961857200).

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

655015015000 is a wasteful number, since it uses less digits than its factorization.

655015015000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7706102 (or 7706083 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 655015015000 its reverse (510510556), we get a palindrome (655525525556).

The spelling of 655015015000 in words is "six hundred fifty-five billion, fifteen million, fifteen thousand".