20415506035236 has 192 divisors, whose sum is σ = 54413128062720. Its totient is φ = 5905638236160.

The previous prime is 20415506035213. The next prime is 20415506035303. The reversal of 20415506035236 is 63253060551402.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1541833576 + ... + 1541846816.

It is an arithmetic number, because the mean of its divisors is an integer number (283401708660).

Almost surely, 2^{20415506035236} is an apocalyptic number.

20415506035236 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20415506035236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27206564031360).

20415506035236 is an abundant number, since it is smaller than the sum of its proper divisors (33997622027484).

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

20415506035236 is a wasteful number, since it uses less digits than its factorization.

20415506035236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17214 (or 17212 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

Adding to 20415506035236 its reverse (63253060551402), we get a palindrome (83668566586638).

The spelling of 20415506035236 in words is "twenty trillion, four hundred fifteen billion, five hundred six million, thirty-five thousand, two hundred thirty-six".