20136475501504 has 112 divisors (see below), whose sum is σ = 44184310920000. Its totient is φ = 9056600047616.

The previous prime is 20136475501433. The next prime is 20136475501517. The reversal of 20136475501504 is 40510557463102.

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 15 ways as a sum of consecutive naturals, for example, 30427122 + ... + 31081870.

Almost surely, 2^{20136475501504} 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 20136475501504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22092155460000).

20136475501504 is an abundant number, since it is smaller than the sum of its proper divisors (24047835418496).

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

20136475501504 is a wasteful number, since it uses less digits than its factorization.

20136475501504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656030 (or 656020 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 20136475501504 in words is "twenty trillion, one hundred thirty-six billion, four hundred seventy-five million, five hundred one thousand, five hundred four".