20667002112 has 216 divisors, whose sum is σ = 60608393664. Its totient is φ = 6772211712.

The previous prime is 20667002099. The next prime is 20667002131. The reversal of 20667002112 is 21120076602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42437133 + ... + 42437619.

Almost surely, 2^20667002112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20667002112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30304196832).

20667002112 is an abundant number, since it is smaller than the sum of its proper divisors (39941391552).

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

20667002112 is a wasteful number, since it uses less digits than its factorization.

20667002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 20667002112 its reverse (21120076602), we get a palindrome (41787078714).

The spelling of 20667002112 in words is "twenty billion, six hundred sixty-seven million, two thousand, one hundred twelve".