20896915716 has 36 divisors (see below), whose sum is σ = 53946652032. Its totient is φ = 6817432944.

The previous prime is 20896915709. The next prime is 20896915751. The reversal of 20896915716 is 61751969802.

20896915716 is a `hidden beast` number, since 2 + 0 + 8 + 9 + 69 + 1 + 571 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6173520 + ... + 6176903.

It is an arithmetic number, because the mean of its divisors is an integer number (1498518112).

Almost surely, 2^20896915716 is an apocalyptic number.

It is an amenable number.

20896915716 is an abundant number, since it is smaller than the sum of its proper divisors (33049736316).

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

20896915716 is a wasteful number, since it uses less digits than its factorization.

20896915716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350480 (or 12350475 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 20896915716 in words is "twenty billion, eight hundred ninety-six million, nine hundred fifteen thousand, seven hundred sixteen".