20210681966592 has 104 divisors (see below), whose sum is σ = 58033848211024. Its totient is φ = 6218671325184.

The previous prime is 20210681966591. The next prime is 20210681966593. The reversal of 20210681966592 is 29566918601202.

It is an interprime number because it is at equal distance from previous prime (20210681966591) and next prime (20210681966593).

It is a tau number, because it is divible by the number of its divisors (104).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210681966591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63099853 + ... + 63419340.

Almost surely, 2^{20210681966592} is an apocalyptic number.

It is an amenable number.

20210681966592 is an abundant number, since it is smaller than the sum of its proper divisors (37823166244432).

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

20210681966592 is a wasteful number, since it uses less digits than its factorization.

20210681966592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126519233 (or 126519211 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 20210681966592 in words is "twenty trillion, two hundred ten billion, six hundred eighty-one million, nine hundred sixty-six thousand, five hundred ninety-two".