20988076416 has 48 divisors (see below), whose sum is σ = 55757119860. Its totient is φ = 6995079168.

The previous prime is 20988076397. The next prime is 20988076477. The reversal of 20988076416 is 61467088902.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2835216 + ... + 2842608.

Almost surely, 2^20988076416 is an apocalyptic number.

It is an amenable number.

20988076416 is an abundant number, since it is smaller than the sum of its proper divisors (34769043444).

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

20988076416 is an frugal number, since it uses more digits than its factorization.

20988076416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14803 (or 7398 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 20988076416 in words is "twenty billion, nine hundred eighty-eight million, seventy-six thousand, four hundred sixteen".