20104220140 has 12 divisors (see below), whose sum is σ = 42218862336. Its totient is φ = 8041688048.

The previous prime is 20104220117. The next prime is 20104220173. The reversal of 20104220140 is 4102240102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502605484 + ... + 502605523.

It is an arithmetic number, because the mean of its divisors is an integer number (3518238528).

Almost surely, 2^20104220140 is an apocalyptic number.

20104220140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20104220140 is an abundant number, since it is smaller than the sum of its proper divisors (22114642196).

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

20104220140 is a wasteful number, since it uses less digits than its factorization.

20104220140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005211016 (or 1005211014 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20104220140 its reverse (4102240102), we get a palindrome (24206460242).

The spelling of 20104220140 in words is "twenty billion, one hundred four million, two hundred twenty thousand, one hundred forty".