20380396110 has 64 divisors (see below), whose sum is σ = 51939885312. Its totient is φ = 5100294656.

The previous prime is 20380396081. The next prime is 20380396121. The reversal of 20380396110 is 1169308302.

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 31 ways as a sum of consecutive naturals, for example, 119389 + ... + 234551.

It is an arithmetic number, because the mean of its divisors is an integer number (811560708).

Almost surely, 2^20380396110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20380396110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25969942656).

20380396110 is an abundant number, since it is smaller than the sum of its proper divisors (31559489202).

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

20380396110 is a wasteful number, since it uses less digits than its factorization.

20380396110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115537.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 20380396110 in words is "twenty billion, three hundred eighty million, three hundred ninety-six thousand, one hundred ten".