20576743056 has 240 divisors, whose sum is σ = 60909226560. Its totient is φ = 6475392000.

The previous prime is 20576743037. The next prime is 20576743091. The reversal of 20576743056 is 65034767502.

20576743056 is a `hidden beast` number, since 2 + 0 + 576 + 74 + 3 + 0 + 5 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70227646 + ... + 70227938.

It is an arithmetic number, because the mean of its divisors is an integer number (253788444).

Almost surely, 2^20576743056 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 20576743056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30454613280).

20576743056 is an abundant number, since it is smaller than the sum of its proper divisors (40332483504).

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

20576743056 is a wasteful number, since it uses less digits than its factorization.

20576743056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 20576743056 in words is "twenty billion, five hundred seventy-six million, seven hundred forty-three thousand, fifty-six".