20670375559776 has 96 divisors (see below), whose sum is σ = 54878834193120. Its totient is φ = 6811536162816.

The previous prime is 20670375559763. The next prime is 20670375559787. The reversal of 20670375559776 is 67795557307602.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 20670375559776.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 50178840 + ... + 50589096.

It is an arithmetic number, because the mean of its divisors is an integer number (571654522845).

Almost surely, 2^{20670375559776} 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 20670375559776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27439417096560).

20670375559776 is an abundant number, since it is smaller than the sum of its proper divisors (34208458633344).

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

20670375559776 is a wasteful number, since it uses less digits than its factorization.

20670375559776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416256 (or 416248 counting only the distinct ones).

The product of its (nonzero) digits is 583443000, while the sum is 69.

The spelling of 20670375559776 in words is "twenty trillion, six hundred seventy billion, three hundred seventy-five million, five hundred fifty-nine thousand, seven hundred seventy-six".