20759955240672 has 120 divisors (see below), whose sum is σ = 61068982606632. Its totient is φ = 6918338131200.

The previous prime is 20759955240671. The next prime is 20759955240677. The reversal of 20759955240672 is 27604255995702.

20759955240672 is a `hidden beast` number, since 2 + 0 + 7 + 5 + 9 + 9 + 552 + 4 + 0 + 6 + 72 = 666.

It is a super-3 number, since 3×20759955240672³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20759955240671) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9963922 + ... + 11865902.

Almost surely, 2^{20759955240672} 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 20759955240672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30534491303316).

20759955240672 is an abundant number, since it is smaller than the sum of its proper divisors (40309027365960).

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

20759955240672 is a wasteful number, since it uses less digits than its factorization.

20759955240672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906214 (or 1906197 counting only the distinct ones).

The product of its (nonzero) digits is 95256000, while the sum is 63.

The spelling of 20759955240672 in words is "twenty trillion, seven hundred fifty-nine billion, nine hundred fifty-five million, two hundred forty thousand, six hundred seventy-two".