655783264 has 96 divisors (see below), whose sum is σ = 1396180800. Its totient is φ = 302561280.

The previous prime is 655783237. The next prime is 655783267. The reversal of 655783264 is 462387556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655783267) 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, 2437722 + ... + 2437990.

It is an arithmetic number, because the mean of its divisors is an integer number (14543550).

Almost surely, 2^655783264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655783264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698090400).

655783264 is an abundant number, since it is smaller than the sum of its proper divisors (740397536).

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

655783264 is a wasteful number, since it uses less digits than its factorization.

655783264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 408 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 46.

The square root of 655783264 is about 25608.2655406414. The cubic root of 655783264 is about 868.8005949934.

The spelling of 655783264 in words is "six hundred fifty-five million, seven hundred eighty-three thousand, two hundred sixty-four".