655010583220 has 48 divisors (see below), whose sum is σ = 1573806019968. Its totient is φ = 224320682880.

The previous prime is 655010583131. The next prime is 655010583307. The reversal of 655010583220 is 22385010556.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 655010583220.

It is a congruent number.

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, 2525671 + ... + 2772910.

It is an arithmetic number, because the mean of its divisors is an integer number (32787625416).

Almost surely, 2^655010583220 is an apocalyptic number.

It is an amenable number.

655010583220 is an abundant number, since it is smaller than the sum of its proper divisors (918795436748).

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

655010583220 is a wasteful number, since it uses less digits than its factorization.

655010583220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299480 (or 5299478 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 655010583220 its reverse (22385010556), we get a palindrome (677395593776).

The spelling of 655010583220 in words is "six hundred fifty-five billion, ten million, five hundred eighty-three thousand, two hundred twenty".