215641300552 has 32 divisors (see below), whose sum is σ = 413724500280. Its totient is φ = 105332231680.

The previous prime is 215641300549. The next prime is 215641300561. The reversal of 215641300552 is 255003146512.

It can be written as a sum of positive squares in 4 ways, for example, as 168088520196 + 47552780356 = 409986^2 + 218066^2 .

It is an unprimeable number.

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, 992599 + ... + 1190182.

Almost surely, 2^215641300552 is an apocalyptic number.

It is an amenable number.

215641300552 is a deficient number, since it is larger than the sum of its proper divisors (198083199728).

215641300552 is a wasteful number, since it uses less digits than its factorization.

215641300552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183073 (or 2183069 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 215641300552 in words is "two hundred fifteen billion, six hundred forty-one million, three hundred thousand, five hundred fifty-two".