20539354752000 has 4224 divisors, whose sum is σ = 94135108773888. Its totient is φ = 4204265472000.

The previous prime is 20539354751999. The next prime is 20539354752043. The reversal of 20539354752000 is 25745393502.

20539354752000 is a `hidden beast` number, since 2 + 0 + 5 + 393 + 54 + 7 + 5 + 200 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 383 ways as a sum of consecutive naturals, for example, 281361023964 + ... + 281361024036.

Almost surely, 2^{20539354752000} is an apocalyptic number.

20539354752000 is a gapful number since it is divisible by the number (20) 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 20539354752000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47067554386944).

20539354752000 is an abundant number, since it is smaller than the sum of its proper divisors (73595754021888).

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

20539354752000 is a wasteful number, since it uses less digits than its factorization.

20539354752000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 45.

The spelling of 20539354752000 in words is "twenty trillion, five hundred thirty-nine billion, three hundred fifty-four million, seven hundred fifty-two thousand".