10198215568 has 10 divisors (see below), whose sum is σ = 19759042694. Its totient is φ = 5099107776.

The previous prime is 10198215551. The next prime is 10198215619. The reversal of 10198215568 is 86551289101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8163483904 + 2034731664 = 90352^2 + 45108^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318694221 + ... + 318694252.

Almost surely, 2^10198215568 is an apocalyptic number.

It is an amenable number.

10198215568 is a deficient number, since it is larger than the sum of its proper divisors (9560827126).

10198215568 is an equidigital number, since it uses as much as digits as its factorization.

10198215568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637388481 (or 637388475 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 46.

The spelling of 10198215568 in words is "ten billion, one hundred ninety-eight million, two hundred fifteen thousand, five hundred sixty-eight".