20067809280 has 192 divisors, whose sum is σ = 65259885600. Its totient is φ = 5263196160.

The previous prime is 20067809263. The next prime is 20067809303. The reversal of 20067809280 is 8290876002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1868566 + ... + 1879274.

Almost surely, 2^20067809280 is an apocalyptic number.

20067809280 is a gapful number since it is divisible by the number (20) 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 20067809280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32629942800).

20067809280 is an abundant number, since it is smaller than the sum of its proper divisors (45192076320).

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

20067809280 is a wasteful number, since it uses less digits than its factorization.

20067809280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10800 (or 10780 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 20067809280 in words is "twenty billion, sixty-seven million, eight hundred nine thousand, two hundred eighty".