655773340 has 24 divisors (see below), whose sum is σ = 1378092240. Its totient is φ = 262124928.

The previous prime is 655773323. The next prime is 655773341. The reversal of 655773340 is 43377556.

655773340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 655773293 and 655773302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655773341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19696 + ... + 41224.

It is an arithmetic number, because the mean of its divisors is an integer number (57420510).

Almost surely, 2^655773340 is an apocalyptic number.

It is an amenable number.

655773340 is an abundant number, since it is smaller than the sum of its proper divisors (722318900).

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

655773340 is a wasteful number, since it uses less digits than its factorization.

655773340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23061 (or 23059 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 40.

The square root of 655773340 is about 25608.0717743449. The cubic root of 655773340 is about 868.7962124374.

It can be divided in two parts, 6557 and 73340, that added together give a palindrome (79897).

The spelling of 655773340 in words is "six hundred fifty-five million, seven hundred seventy-three thousand, three hundred forty".