20410042136 has 128 divisors (see below), whose sum is σ = 45515520000. Its totient is φ = 8476876800.

The previous prime is 20410042123. The next prime is 20410042139. The reversal of 20410042136 is 63124001402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410042139) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 23272130 + ... + 23273006.

It is an arithmetic number, because the mean of its divisors is an integer number (355590000).

Almost surely, 2^20410042136 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 20410042136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22757760000).

20410042136 is an abundant number, since it is smaller than the sum of its proper divisors (25105477864).

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

20410042136 is a wasteful number, since it uses less digits than its factorization.

20410042136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20410042136 its reverse (63124001402), we get a palindrome (83534043538).

The spelling of 20410042136 in words is "twenty billion, four hundred ten million, forty-two thousand, one hundred thirty-six".