20536525343220 has 48 divisors (see below), whose sum is σ = 58312162113408. Its totient is φ = 5399274267520.

The previous prime is 20536525343161. The next prime is 20536525343227. The reversal of 20536525343220 is 2234352563502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20536525343227) 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, 2410386039 + ... + 2410394558.

It is an arithmetic number, because the mean of its divisors is an integer number (1214836710696).

Almost surely, 2^{20536525343220} is an apocalyptic number.

20536525343220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20536525343220 is an abundant number, since it is smaller than the sum of its proper divisors (37775636770188).

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

20536525343220 is a wasteful number, since it uses less digits than its factorization.

20536525343220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820780680 (or 4820780678 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 42.

The spelling of 20536525343220 in words is "twenty trillion, five hundred thirty-six billion, five hundred twenty-five million, three hundred forty-three thousand, two hundred twenty".