20315224341552 has 40 divisors (see below), whose sum is σ = 59978281390336. Its totient is φ = 5804349811776.

The previous prime is 20315224341527. The next prime is 20315224341563. The reversal of 20315224341552 is 25514342251302.

It is a self number, because there is not a number n which added to its sum of digits gives 20315224341552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30230988268 + ... + 30230988939.

Almost surely, 2^{20315224341552} is an apocalyptic number.

It is an amenable number.

20315224341552 is an abundant number, since it is smaller than the sum of its proper divisors (39663057048784).

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

20315224341552 is a wasteful number, since it uses less digits than its factorization.

20315224341552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60461977225 (or 60461977219 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 20315224341552 its reverse (25514342251302), we get a palindrome (45829566592854).

The spelling of 20315224341552 in words is "twenty trillion, three hundred fifteen billion, two hundred twenty-four million, three hundred forty-one thousand, five hundred fifty-two".