20410350136 has 64 divisors (see below), whose sum is σ = 42179356800. Its totient is φ = 9182160000.

The previous prime is 20410350131. The next prime is 20410350197. The reversal of 20410350136 is 63105301402.

It is a self number, because there is not a number n which added to its sum of digits gives 20410350136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410350131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3597510 + ... + 3603178.

It is an arithmetic number, because the mean of its divisors is an integer number (659052450).

Almost surely, 2^20410350136 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 20410350136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21089678400).

20410350136 is an abundant number, since it is smaller than the sum of its proper divisors (21769006664).

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

20410350136 is a wasteful number, since it uses less digits than its factorization.

20410350136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100 (or 6096 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 20410350136 its reverse (63105301402), we get a palindrome (83515651538).

The spelling of 20410350136 in words is "twenty billion, four hundred ten million, three hundred fifty thousand, one hundred thirty-six".