20217716048 has 40 divisors (see below), whose sum is σ = 39856068096. Its totient is φ = 9932630400.

The previous prime is 20217716047. The next prime is 20217716053. The reversal of 20217716048 is 84061771202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20217716041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956765 + ... + 977667.

Almost surely, 2^20217716048 is an apocalyptic number.

It is an amenable number.

20217716048 is a deficient number, since it is larger than the sum of its proper divisors (19638352048).

20217716048 is a wasteful number, since it uses less digits than its factorization.

20217716048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21963 (or 21957 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The spelling of 20217716048 in words is "twenty billion, two hundred seventeen million, seven hundred sixteen thousand, forty-eight".