20578383232 has 48 divisors (see below), whose sum is σ = 44734608180. Its totient is φ = 9351363840.

The previous prime is 20578383229. The next prime is 20578383251. The reversal of 20578383232 is 23238387502.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 5380873 + ... + 5384695.

Almost surely, 2^20578383232 is an apocalyptic number.

20578383232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20578383232 is an abundant number, since it is smaller than the sum of its proper divisors (24156224948).

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

20578383232 is an frugal number, since it uses more digits than its factorization.

20578383232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7671 (or 3836 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 20578383232 in words is "twenty billion, five hundred seventy-eight million, three hundred eighty-three thousand, two hundred thirty-two".