20898280496 has 80 divisors (see below), whose sum is σ = 42072307200. Its totient is φ = 10051064064.

The previous prime is 20898280439. The next prime is 20898280499. The reversal of 20898280496 is 69408289802.

It is not an unprimeable number, because it can be changed into a prime (20898280499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8539145 + ... + 8541591.

It is an arithmetic number, because the mean of its divisors is an integer number (525903840).

Almost surely, 2^20898280496 is an apocalyptic number.

It is an amenable number.

20898280496 is an abundant number, since it is smaller than the sum of its proper divisors (21174026704).

20898280496 is a wasteful number, since it uses less digits than its factorization.

20898280496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706 (or 2700 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 20898280496 in words is "twenty billion, eight hundred ninety-eight million, two hundred eighty thousand, four hundred ninety-six".