20031704880 has 120 divisors (see below), whose sum is σ = 68256891696. Its totient is φ = 4856163840.

The previous prime is 20031704863. The next prime is 20031704909. The reversal of 20031704880 is 8840713002.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315859 + ... + 373938.

Almost surely, 2^20031704880 is an apocalyptic number.

20031704880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20031704880 is an abundant number, since it is smaller than the sum of its proper divisors (48225186816).

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

20031704880 is a wasteful number, since it uses less digits than its factorization.

20031704880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689835 (or 689818 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 20031704880 in words is "twenty billion, thirty-one million, seven hundred four thousand, eight hundred eighty".