655405564 has 24 divisors (see below), whose sum is σ = 1263625776. Its totient is φ = 294960000.

The previous prime is 655405561. The next prime is 655405577. The reversal of 655405564 is 465504556.

655405564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655405561) 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, 69297 + ... + 78184.

It is an arithmetic number, because the mean of its divisors is an integer number (52651074).

Almost surely, 2^655405564 is an apocalyptic number.

It is an amenable number.

655405564 is a deficient number, since it is larger than the sum of its proper divisors (608220212).

655405564 is a wasteful number, since it uses less digits than its factorization.

655405564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147597 (or 147595 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The square root of 655405564 is about 25600.8899064076. The cubic root of 655405564 is about 868.6337670073.

The spelling of 655405564 in words is "six hundred fifty-five million, four hundred five thousand, five hundred sixty-four".