20570755739420 has 192 divisors, whose sum is σ = 46531962038016. Its totient is φ = 7611434926080.

The previous prime is 20570755739411. The next prime is 20570755739441. The reversal of 20570755739420 is 2493755707502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3883470212 + ... + 3883475508.

It is an arithmetic number, because the mean of its divisors is an integer number (242353968948).

Almost surely, 2^{20570755739420} is an apocalyptic number.

20570755739420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20570755739420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23265981019008).

20570755739420 is an abundant number, since it is smaller than the sum of its proper divisors (25961206298596).

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

20570755739420 is a wasteful number, since it uses less digits than its factorization.

20570755739420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240 (or 6238 counting only the distinct ones).

The product of its (nonzero) digits is 18522000, while the sum is 56.

The spelling of 20570755739420 in words is "twenty trillion, five hundred seventy billion, seven hundred fifty-five million, seven hundred thirty-nine thousand, four hundred twenty".