20687328112 has 40 divisors (see below), whose sum is σ = 44907273072. Its totient is φ = 9149184000.

The previous prime is 20687328091. The next prime is 20687328119. The reversal of 20687328112 is 21182378602.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20687328119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581889 + ... + 1594912.

Almost surely, 2^20687328112 is an apocalyptic number.

20687328112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20687328112 is an abundant number, since it is smaller than the sum of its proper divisors (24219944960).

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

20687328112 is a wasteful number, since it uses less digits than its factorization.

20687328112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176857 (or 3176851 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 20687328112 in words is "twenty billion, six hundred eighty-seven million, three hundred twenty-eight thousand, one hundred twelve".