20295523380672 has 448 divisors, whose sum is σ = 63631047744000. Its totient is φ = 6325317402624.

The previous prime is 20295523380661. The next prime is 20295523380673. The reversal of 20295523380672 is 27608332559202.

20295523380672 is a `hidden beast` number, since 2 + 0 + 2 + 9 + 552 + 3 + 3 + 80 + 6 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20295523380673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 919711783 + ... + 919733849.

Almost surely, 2^{20295523380672} 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 20295523380672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31815523872000).

20295523380672 is an abundant number, since it is smaller than the sum of its proper divisors (43335524363328).

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

20295523380672 is a wasteful number, since it uses less digits than its factorization.

20295523380672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22473 (or 22457 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 20295523380672 in words is "twenty trillion, two hundred ninety-five billion, five hundred twenty-three million, three hundred eighty thousand, six hundred seventy-two".