296056780321 has 27 divisors (see below), whose sum is σ = 317771806233. Its totient is φ = 275798983680.

The previous prime is 296056780277. The next prime is 296056780361. The reversal of 296056780321 is 123087650692.

The square root of 296056780321 is 544111.

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 5604768225 + 290452012096 = 74865^2 + 538936^2 .

It is not a de Polignac number, because 296056780321 - 2¹³ = 296056772129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (296056780361) 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, 513096385 + ... + 513096961.

Almost surely, 2^296056780321 is an apocalyptic number.

296056780321 is the 544111-st square number.

296056780321 is the 272056-th centered octagonal number.

It is an amenable number.

296056780321 is a deficient number, since it is larger than the sum of its proper divisors (21715025912).

296056780321 is an frugal number, since it uses more digits than its factorization.

296056780321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

Multiplying 296056780321 by its sum of digits (49), we get a square (14506782235729 = 3808777²).

The spelling of 296056780321 in words is "two hundred ninety-six billion, fifty-six million, seven hundred eighty thousand, three hundred twenty-one".