655727367760 has 40 divisors (see below), whose sum is σ = 1524922387560. Its totient is φ = 262229655552.

The previous prime is 655727367707. The next prime is 655727367761. The reversal of 655727367760 is 67763727556.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27151130176 + 628576237584 = 164776^2 + 792828^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655727367761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612417 + ... + 1298656.

It is an arithmetic number, because the mean of its divisors is an integer number (38123059689).

Almost surely, 2^655727367760 is an apocalyptic number.

It is an amenable number.

655727367760 is an abundant number, since it is smaller than the sum of its proper divisors (869195019800).

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

655727367760 is a wasteful number, since it uses less digits than its factorization.

655727367760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915375 (or 1915369 counting only the distinct ones).

The product of its (nonzero) digits is 77792400, while the sum is 61.

The spelling of 655727367760 in words is "six hundred fifty-five billion, seven hundred twenty-seven million, three hundred sixty-seven thousand, seven hundred sixty".