20384548880 has 40 divisors (see below), whose sum is σ = 47400876864. Its totient is φ = 8152649600.

The previous prime is 20384548843. The next prime is 20384548967. The reversal of 20384548880 is 8884548302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×20384548880² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736085 + ... + 763275.

Almost surely, 2^20384548880 is an apocalyptic number.

20384548880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20384548880 is an abundant number, since it is smaller than the sum of its proper divisors (27016327984).

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

20384548880 is a wasteful number, since it uses less digits than its factorization.

20384548880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36575 (or 36569 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 50.

The spelling of 20384548880 in words is "twenty billion, three hundred eighty-four million, five hundred forty-eight thousand, eight hundred eighty".