660097751296 has 243 divisors, whose sum is σ = 1463822895171. Its totient is φ = 297010839552.

The previous prime is 660097751293. The next prime is 660097751311. The reversal of 660097751296 is 692157790066.

The square root of 660097751296 is 812464.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 65249593600 + 594848157696 = 255440^2 + 771264^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 660097751296.

It is not an unprimeable number, because it can be changed into a prime (660097751293) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6408715981 + ... + 6408716083.

Almost surely, 2^660097751296 is an apocalyptic number.

660097751296 is the 812464-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660097751296

660097751296 is an abundant number, since it is smaller than the sum of its proper divisors (803725143875).

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

660097751296 is an equidigital number, since it uses as much as digits as its factorization.

660097751296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 660097751296 in words is "six hundred sixty billion, ninety-seven million, seven hundred fifty-one thousand, two hundred ninety-six".