20315445056416 has 48 divisors (see below), whose sum is σ = 40242049585920. Its totient is φ = 10095311888640.

The previous prime is 20315445056381. The next prime is 20315445056477. The reversal of 20315445056416 is 61465054451302.

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, 8216425 + ... + 10399063.

It is an arithmetic number, because the mean of its divisors is an integer number (838376033040).

Almost surely, 2^{20315445056416} is an apocalyptic number.

It is an amenable number.

20315445056416 is a deficient number, since it is larger than the sum of its proper divisors (19926604529504).

20315445056416 is a wasteful number, since it uses less digits than its factorization.

20315445056416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184437 (or 2184429 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 20315445056416 in words is "twenty trillion, three hundred fifteen billion, four hundred forty-five million, fifty-six thousand, four hundred sixteen".