20315650455412 has 24 divisors (see below), whose sum is σ = 38287664492000. Its totient is φ = 9376337216736.

The previous prime is 20315650455403. The next prime is 20315650455467. The reversal of 20315650455412 is 21455405651302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1850839 + ... + 6637537.

Almost surely, 2^{20315650455412} is an apocalyptic number.

It is an amenable number.

20315650455412 is a deficient number, since it is larger than the sum of its proper divisors (17972014036588).

20315650455412 is a wasteful number, since it uses less digits than its factorization.

20315650455412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4868335 (or 4868333 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 20315650455412 in words is "twenty trillion, three hundred fifteen billion, six hundred fifty million, four hundred fifty-five thousand, four hundred twelve".