20608487424 has 312 divisors, whose sum is σ = 71041525920. Its totient is φ = 5886590976.

The previous prime is 20608487411. The next prime is 20608487437. The reversal of 20608487424 is 42478480602.

It is an interprime number because it is at equal distance from previous prime (20608487411) and next prime (20608487437).

It is a self number, because there is not a number n which added to its sum of digits gives 20608487424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5417107 + ... + 5420909.

Almost surely, 2^20608487424 is an apocalyptic number.

20608487424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20608487424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35520762960).

20608487424 is an abundant number, since it is smaller than the sum of its proper divisors (50433038496).

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

20608487424 is an equidigital number, since it uses as much as digits as its factorization.

20608487424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850 (or 3815 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 45.

The spelling of 20608487424 in words is "twenty billion, six hundred eight million, four hundred eighty-seven thousand, four hundred twenty-four".