655044064 has 24 divisors (see below), whose sum is σ = 1291263120. Its totient is φ = 327104256.

The previous prime is 655044031. The next prime is 655044067. The reversal of 655044064 is 460440556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655044067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13237 + ... + 38539.

It is an arithmetic number, because the mean of its divisors is an integer number (53802630).

Almost surely, 2^655044064 is an apocalyptic number.

It is an amenable number.

655044064 is a deficient number, since it is larger than the sum of its proper divisors (636219056).

655044064 is a wasteful number, since it uses less digits than its factorization.

655044064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26122 (or 26114 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 655044064 is about 25593.8286311368. The cubic root of 655044064 is about 868.4740344313.

The spelling of 655044064 in words is "six hundred fifty-five million, forty-four thousand, sixty-four".