215152256288 has 54 divisors (see below), whose sum is σ = 427002260643. Its totient is φ = 106714175680.

The previous prime is 215152256281. The next prime is 215152256303. The reversal of 215152256288 is 882652251512.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 107576128144 + 107576128144 = 327988^2 + 327988^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=327988.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215152256281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 438191723 + ... + 438192213.

Almost surely, 2^215152256288 is an apocalyptic number.

It is an amenable number.

215152256288 is a deficient number, since it is larger than the sum of its proper divisors (211850004355).

215152256288 is an frugal number, since it uses more digits than its factorization.

215152256288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 660 counting only the distinct ones).

The product of its digits is 768000, while the sum is 47.

The spelling of 215152256288 in words is "two hundred fifteen billion, one hundred fifty-two million, two hundred fifty-six thousand, two hundred eighty-eight".