655845132860 has 24 divisors (see below), whose sum is σ = 1378100058720. Its totient is φ = 262180857024.

The previous prime is 655845132829. The next prime is 655845132869. The reversal of 655845132860 is 68231548556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655845132869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9790544 + ... + 9857303.

It is an arithmetic number, because the mean of its divisors is an integer number (57420835780).

Almost surely, 2^655845132860 is an apocalyptic number.

It is an amenable number.

655845132860 is an abundant number, since it is smaller than the sum of its proper divisors (722254925860).

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

655845132860 is a wasteful number, since it uses less digits than its factorization.

655845132860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19649525 (or 19649523 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 53.

The spelling of 655845132860 in words is "six hundred fifty-five billion, eight hundred forty-five million, one hundred thirty-two thousand, eight hundred sixty".